TOTAL NUTRIENT INTAKES                              
                                                                                
                                                                                
     Dietary interviews were administered to all examinees by a trained         
     dietary interviewer in the mobile examination center (MEC).  The           
     nutrient intakes reported in this file include nutrients from foods        
     and beverages reported in the 24-hour dietary recall.  The nutrient        
     intakes do not include nutrients obtained from other sources (i.e.,        
     nutritional supplements, antacids, medications, salt and seasonings        
     added to prepared foods at the table, and plain unbottled drinking         
     water).  Questionnaire data on food sufficiency, intake of plain           
     drinking water, and salt use are included in this file as well.            
     Detailed information about the individual foods reported by                
     respondents will be released as a separate dietary data file.              
                                                                                
     Analysts are encouraged to use six years of survey data in their           
     analyses.  The reliability of estimates is improved when larger sample     
     sizes are used.  For more detailed information, see the Analytic and       
     Reporting Guidelines for NHANES III (U.S. DHHS, 1996b).  In addition,      
     MEC final examination weights (WTPFEX6) should be used when analyzing      
     the total nutrient intake data and related questionnaire data in this      
     file.  For more information on the use of sample weights in NHANES III     
     data analysis, refer to the NHANES III Analytic and Reporting Guidelines   
     (U.S. DHHS, 1996b).                                                        
                                                                                
     Respondents reported all foods and beverages consumed except plain         
     drinking water (i.e., not bottled) for the previous 24-hour time           
     period (midnight to midnight).  An automated, microcomputer-based          
     dietary interview and coding system known as the NHANES III Dietary        
     Data Collection (DDC) System was used to collect all NHANES III            
     dietary recall data.  The DDC system was developed for use in the          
     survey by the University of Minnesota's Nutrition Coordinating Center      
     (NCC).  Total nutrient intakes are reported in this file for               
     respondents whose dietary recalls were coded complete and reliable         
     (DRPSTAT=1).                                                               
                                                                                
     The dietary interviews were conducted in English and Spanish by            
     bilingual dietary interviewers in a private room to ensure                 
     confidentiality.  Proxy respondents were permitted for infants and         
     children aged two months through five years and for other respondents      
     who were unable to report on their own.  Children aged six to 11 years     
     were permitted to report their own intake if the interviewer deemed it     
     acceptable and appropriate, but many interviewers for respondents in       
     this age category were completed by proxy or with the child and a          
     proxy.  The dietary interviewers contacted other information sources       
     such as care providers and schools to obtain complete dietary intake       
     data for respondents.                                                      
                                                                                
     The primary source of food composition data for NHANES III is the U.S.     
     Department of Agriculture (USDA) Survey Nutrient Database; two nutrient    
     files were provided by USDA for use in NHANES III (USDA 1993, 1995).       
     Each USDA file contained food composition values that were appropriate     
     for the time period during which the NHANES III data were collected.       
     Additionally, food composition data for a small number of herbs and        
     spices were obtained from NCC (NCC, 1996).                                 
                                                                                
                                                                               
     The DDC system's foods database was designed specifically to handle        
     time-related changes in food descriptions, food amounts, and recipes;      
     updated information was applied retrospectively to data collected in       
     the early part of NHANES III.  As was mentioned earlier, two USDA food     
     composition databases were used to assign nutrient values to the           
     NHANES III dietary recalls (USDA 1993; USDA, 1995).  In addition to        
     data changes that occurred in the nutrient values of foods due to food     
     product reformulations, recipe changes, and so forth, the U.S.             
     marketplace underwent tremendous growth and change as new food product     
     lines were introduced and new food components were added to the food       
     supply (e.g., fat substitutes and artificial sweeteners).  The impact      
     of these and other changes may require additional analysis.                
                                                                                
     Dietary recall interviews were edited by the interviewers to ensure        
     that they were as complete as possible.  NCHS completed all final          
     editing and determinations regarding the completeness and reliability      
     of the dietary recalls.  Analysts should note that the data reported       
     are self-reported data.  Extreme values were verified.                     
                                                                                
     Information pertaining to the use of nutritional supplements and           
     antacids was reported separately during the Household Adult and            
     Household Youth Questionnaires.                                            
                                                                                
     A number of quality-control monitoring techniques were employed during     
     the survey.  For example, the techniques for monitoring the Dietary        
     Interview component included observations of actual dietary interviews     
     and reviews of audiotaped interviews by NCHS and contractor staff.  In     
     addition, the dietary interviewers worked in two-person teams; there was   
     one team in each MEC.  The dietary interviewers performed 10-percent       
     cross-check reviews of their partners' work using printed recall           
     reports.  Finally, newsletters, field memoranda, telephone calls, and      
     staff retraining sessions were other methods used to maintain quality      
     control during the survey.  Refer to the NHANES III Dietary                
     Interviewer's Training Manual for the dietary interview protocol (U.S.     
     DHHS, 1996b).                                                              
                                                                               
                                                                                
                        NHANES III Examination Data File                        
                                                                                
    ------------------------------------------------------------------------    
                             TOTAL NUTRIENT INTAKES                             
    ------------------------------------------------------------------------    
                              GENERAL INFORMATION                               
    ------------------------------------------------------------------------    
    Positions            Item description                                       
    SAS name    Counts       and code                               Notes       
    ------------------------------------------------------------------------    
                                                                                
             1635          Recall status code                       See note    
      DRPSTAT     29105    1     Reliable and complete                          
                    586    2     Reliable, but incomplete                       
                    184    3     Unreliable                                     
                    326    4     Interview lost due to computer                 
                                 malfunction or file transfer                   
                                 problem                                        
                    300    5     Breastfeeding infant or child                  
                    317    8     Blank but applicable                           
                    493    Blank                                                
                                                                                
        1636-1637          Recall day                               See note    
      DRPRDAY      2707    01    Sunday                                         
                   2729    02    Monday                                         
                   3126    03    Tuesday                                        
                   5734    04    Wednesday                                      
                   5365    05    Thursday                                       
                   7627    06    Friday                                         
                   2893    07    Saturday                                       
                    637    88    Blank but applicable                           
                    493    Blank                                                
                                                                                
             1638          Respondent for the 24-hour dietary       See note    
      DRPRESP              recall interview                                     
                  20727    1     Examinee, i.e. self-reported                   
                   8467    2     Proxy                                          
                    987    3     Examinee and proxy                             
                    637    8     Blank but applicable                           
                    493    Blank                                                
                                                                                
             1639          Language of 24-hour dietary recall       See note    
      DRPLANG              interview                                            
                  25936    1     English                                        
                   3864    2     Spanish                                        
                    230    3     English and Spanish                            
                    151    4     Other language                                 
                    637    8     Blank but applicable                           
                    493    Blank                                                
                                                                                
                                                                               
                                                                                
                        NHANES III Examination Data File                        
                                                                                
    ------------------------------------------------------------------------    
                             TOTAL NUTRIENT INTAKES                             
    ------------------------------------------------------------------------    
                              GENERAL INFORMATION                               
    ------------------------------------------------------------------------    
    Positions            Item description                                       
    SAS name    Counts       and code                               Notes       
    ------------------------------------------------------------------------    
                                                                                
        1640-1641          Interviewer number                                   
      DRPIID       7195    01                                                   
                    596    02                                                   
                   7619    03                                                   
                   8076    04                                                   
                    333    05                                                   
                    169    06                                                   
                   2513    07                                                   
                   3844    08                                                   
                     94    10                                                   
                      2    11                                                   
                     19    12                                                   
                    358    88    Blank but applicable                           
                    493    Blank                                                
                                                                                
                                                                               
                                                                                
                        NHANES III Examination Data File                        
                                                                                
    ------------------------------------------------------------------------    
                             TOTAL NUTRIENT INTAKES                             
    ------------------------------------------------------------------------    
                                   QUESTIONS                                    
    ------------------------------------------------------------------------    
    Positions            Item description                                       
    SAS name    Counts       and code                               Notes       
    ------------------------------------------------------------------------    
                                                                                
             1642          How does the amount of food consumed     See note    
      DRPQ1                yesterday compare with (your/his/her)                
                           usual consumption for that day of the                
                           week?  Was it...                                     
                    663    1     Much more than usual                           
                  25383    2     Usual                                          
                   2893    3     Much less than usual                           
                   1513    8     Blank but applicable                           
                    366    9     Don't know                                     
                    493    Blank                                                
                                                                                
        1643-1645          How much plain drinking water do you     See note    
      DRPQ2A               usually drink in a 24-hour period?                   
                           Include only plain tap or spring water.              
                           (fl oz)                                              
                   2362    000   None                                           
                  26861    001-576                                              
                    796    888   Blank but applicable                           
                    799    999   Don't know                                     
                    493    Blank                                                
                                                                                
             1646          What type of salt do you usually add to  See note    
      DRPQ3                your food at the table?                              
                  15382    0     None (DRPQ5)                                   
                  12985    2     Ordinary salt                                  
                    872    3     Lite salt                                      
                    298    4     Salt substitute                                
                    800    8     Blank but applicable                           
                    481    9     Don't know                                     
                    493    Blank                                                
                                                                                
             1647          How often do you add salt at the table?              
      DRPQ4        5354    1     Rarely                                         
                   5127    2     Occasionally                                   
                   3982    3     Very often                                     
                    811    8     Blank but applicable                           
                    162    9     Don't know                                     
                  15875    Blank                                                
                                                                                
                                                                               
                                                                                
                        NHANES III Examination Data File                        
                                                                                
    ------------------------------------------------------------------------    
                             TOTAL NUTRIENT INTAKES                             
    ------------------------------------------------------------------------    
                                   QUESTIONS                                    
    ------------------------------------------------------------------------    
    Positions            Item description                                       
    SAS name    Counts       and code                               Notes       
    ------------------------------------------------------------------------    
                                                                                
        1648-1649          Thinking about the past month, how many  See note    
      DRPQ5                days did you have no food or money to                
                           buy food?                                            
                  28097    00    None (DRPQ7)                                   
                   1664    01-31  Number of days                                
                      1    55    Refusal (DRPQ12)                               
                      7    66    Greater than zero number of days,              
                                 not further specified                          
                    825    88    Blank but applicable                           
                    224    99    Don't know (DRPQ7)                             
                    493    Blank                                                
                                                                                
             1650          Is that because there wasn't enough      See note    
      DRPQ6                money to buy food or another reason?                 
                   1341    1     Not enough money                               
                    314    2     Another reason (DRPQ12)                        
                    832    8     Blank but applicable                           
                      9    9     Don't know                                     
                  28815    Blank                                                
                                                                                
             1651          During the past month, did (you/___)     See note    
      DRPQ7                skip any meals because there wasn't                  
                           enough food or money to buy food?                    
                   1097    1     Yes                                            
                  28489    2     No (DRPQ12)                                    
                    831    8     Blank but applicable                           
                     86    9     Don't know (DRPQ9)                             
                    808    Blank                                                
                                                                                
        1652-1653          How many days in the past month did      See note    
      DRPQ8                (you/___) skip any meals because there               
                           wasn't enough food or money to buy food?             
                   1063    01-30                                                
                      4    66    Greater than zero number of days,              
                                 not further specified                          
                    832    88    Blank but applicable                           
                     29    99    Don't know                                     
                  29383    Blank                                                
                                                                                
                                                                               
                                                                                
                        NHANES III Examination Data File                        
                                                                                
    ------------------------------------------------------------------------    
                             TOTAL NUTRIENT INTAKES                             
    ------------------------------------------------------------------------    
                                   QUESTIONS                                    
    ------------------------------------------------------------------------    
    Positions            Item description                                       
    SAS name    Counts       and code                               Notes       
    ------------------------------------------------------------------------    
                                                                                
             1654          Did (you/___) skip any meals yesterday   See note    
      DRPQ9                because there wasn't enough food or                  
                           money to buy food?                                   
                    207    1     Yes                                            
                    943    2     No                                             
                    832    8     Blank but applicable                           
                     32    9     Don't know                                     
                  29297    Blank                                                
                                                                                
             1655          During the past month, were there any    See note    
      DRPQ10               days when (you/__) did not eat at all                
                           because there wasn't enough food or                  
                           money to buy food?                                   
                    202    1     Yes                                            
                    945    2     No (DRPQ12)                                    
                    832    8     Blank but applicable                           
                     35    9     Don't know (DRPQ12)                            
                  29297    Blank                                                
                                                                                
        1656-1657          In the past month, how many days were    See note    
      DRPQ11               there when (you/___) didn't eat at all?              
                     53    01                                                   
                     49    02                                                   
                     38    03                                                   
                     19    04                                                   
                     23    05                                                   
                      4    06                                                   
                      5    07                                                   
                      3    08                                                   
                      3    10                                                   
                      1    12                                                   
                      1    66    Greater than zero number of days,              
                                 not further specified                          
                    832    88    Blank but applicable                           
                      3    99    Don't know                                     
                  30277    Blank                                                
                                                                                
                                                                               
                                                                                
                        NHANES III Examination Data File                        
                                                                                
    ------------------------------------------------------------------------    
                             TOTAL NUTRIENT INTAKES                             
    ------------------------------------------------------------------------    
                                   QUESTIONS                                    
    ------------------------------------------------------------------------    
    Positions            Item description                                       
    SAS name    Counts       and code                               Notes       
    ------------------------------------------------------------------------    
                                                                                
             1658          Are you the person who usually prepares              
      DRPQ12               the meals at home?                                   
                  17249    1     Yes                                            
                  10586    2     No                                             
                   1878    3     Shared preparation                             
                    262    4     Food not prepared at home                      
                    835    8     Blank but applicable                           
                      8    9     Don't know                                     
                    493    Blank                                                
                                                                                
                                                                               
                                                                                
                        NHANES III Examination Data File                        
                                                                                
    ------------------------------------------------------------------------    
                             TOTAL NUTRIENT INTAKES                             
    ------------------------------------------------------------------------    
                              NUTRIENT QUANTITIES                               
    ------------------------------------------------------------------------    
    Positions            Item description                                       
    SAS name    Counts       and code                               Notes       
    ------------------------------------------------------------------------    
                                                                                
        1659-1663          Total grams of foods and beverages       See note    
      DRPGW                consumed                                             
                  29105    00000-14802                                          
                   1713    88888 Blank but applicable                           
                    493    Blank                                                
                                                                                
        1664-1668          Water (gm)                               See note    
      DRPNWATE    29105    00000-18175                                          
                   1713    88888 Blank but applicable                           
                    493    Blank                                                
                                                                                
        1669-1673          Food energy (kcal)                                   
      DRPNKCAL    29105    00000-17739                                          
                   1713    88888 Blank but applicable                           
                    493    Blank                                                
                                                                                
        1674-1679          Protein (gm)                                         
      DRPNPROT    29105    000000-000707                                        
                   1713    888888  Blank but applicable                         
                    493    Blank                                                
                                                                                
        1680-1685          Total fat (gm)                                       
      DRPNTFAT    29105    000000-0856.2                                        
                   1713    888888  Blank but applicable                         
                    493    Blank                                                
                                                                                
        1686-1690          Total saturated fatty acids (gm)                     
      DRPNSFAT    29105    00000-282.4                                          
                   1713    88888 Blank but applicable                           
                    493    Blank                                                
                                                                                
        1691-1695          Total monounsaturated fatty acids (gm)               
      DRPNMFAT    29105    00000-341.1                                          
                   1713    88888 Blank but applicable                           
                    493    Blank                                                
                                                                                
        1696-1700          Total polyunsaturated fatty acids (gm)               
      DRPNPFAT    29105    00000-202.4                                          
                   1713    88888 Blank but applicable                           
                    493    Blank                                                
                                                                                
                                                                               
                                                                                
                        NHANES III Examination Data File                        
                                                                                
    ------------------------------------------------------------------------    
                             TOTAL NUTRIENT INTAKES                             
    ------------------------------------------------------------------------    
                              NUTRIENT QUANTITIES                               
    ------------------------------------------------------------------------    
    Positions            Item description                                       
    SAS name    Counts       and code                               Notes       
    ------------------------------------------------------------------------    
                                                                                
        1701-1704          Cholesterol (mg)                                     
      DRPNCHOL    29105    0000-3752                                            
                   1713    8888  Blank but applicable                           
                    493    Blank                                                
                                                                                
        1705-1710          Carbohydrate (gm)                                    
      DRPNCARB    29105    000000-2087.2                                        
                   1713    888888  Blank but applicable                         
                    493    Blank                                                
                                                                                
        1711-1715          Total dietary fiber (gm)                             
      DRPNFIBE    29105    00000-00134                                          
                   1713    88888 Blank but applicable                           
                    493    Blank                                                
                                                                                
        1716-1719          Alcohol (gm)                                         
      DRPNALCO    29105    0000-0717                                            
                   1713    8888  Blank but applicable                           
                    493    Blank                                                
                                                                                
        1720-1725          Vitamin A (IU)                                       
      DRPNVAIU    29105    000000-243618                                        
                   1713    888888  Blank but applicable                         
                    493    Blank                                                
                                                                                
        1726-1730          Vitamin A (RE)                                       
      DRPNVARE    29105    00000-45237                                          
                   1713    88888 Blank but applicable                           
                    493    Blank                                                
                                                                                
        1731-1735          Carotenes (RE)                                       
      DRPNCARO    29105    00000-24342                                          
                   1713    88888 Blank but applicable                           
                    493    Blank                                                
                                                                                
        1736-1741          Vitamin E (alpha tocopherol equivalents)             
      DRPNVE      29105    000000-0601.1                                        
                   1713    888888  Blank but applicable                         
                    493    Blank                                                
                                                                                
                                                                               
                                                                                
                        NHANES III Examination Data File                        
                                                                                
    ------------------------------------------------------------------------    
                             TOTAL NUTRIENT INTAKES                             
    ------------------------------------------------------------------------    
                              NUTRIENT QUANTITIES                               
    ------------------------------------------------------------------------    
    Positions            Item description                                       
    SAS name    Counts       and code                               Notes       
    ------------------------------------------------------------------------    
                                                                                
        1742-1745          Ascorbic acid (mg)                                   
      DRPNVC      29105    0000-1516                                            
                   1713    8888  Blank but applicable                           
                    493    Blank                                                
                                                                                
        1746-1750          Thiamin (mg)                                         
      DRPNVB1     29105    00000-24.74                                          
                   1713    88888 Blank but applicable                           
                    493    Blank                                                
                                                                                
        1751-1755          Riboflavin (mg)                                      
      DRPNVB2     29105    00000-029.1                                          
                   1713    88888 Blank but applicable                           
                    493    Blank                                                
                                                                                
        1756-1760          Niacin (mg)                                          
      DRPNNIAC    29105    00000-320.4                                          
                   1713    88888 Blank but applicable                           
                    493    Blank                                                
                                                                                
        1761-1765          Vitamin B6 (mg)                                      
      DRPNVB6     29105    00000-32.19                                          
                   1713    88888 Blank but applicable                           
                    493    Blank                                                
                                                                                
        1766-1770          Folacin (micrograms)                                 
      DRPNFOLA    29105    00000-06426                                          
                   1713    88888 Blank but applicable                           
                    493    Blank                                                
                                                                                
        1771-1776          Vitamin B12 (micrograms)                             
      DRPNVB12    29105    000000-261.52                                        
                   1713    888888  Blank but applicable                         
                    493    Blank                                                
                                                                                
        1777-1781          Calcium (mg)                                         
      DRPNCALC    29105    00000-10002                                          
                   1713    88888 Blank but applicable                           
                    493    Blank                                                
                                                                                
                                                                               
                                                                                
                        NHANES III Examination Data File                        
                                                                                
    ------------------------------------------------------------------------    
                             TOTAL NUTRIENT INTAKES                             
    ------------------------------------------------------------------------    
                              NUTRIENT QUANTITIES                               
    ------------------------------------------------------------------------    
    Positions            Item description                                       
    SAS name    Counts       and code                               Notes       
    ------------------------------------------------------------------------    
                                                                                
        1782-1786          Phosphorus (mg)                                      
      DRPNPHOS    29105    00000-10041                                          
                   1713    88888 Blank but applicable                           
                    493    Blank                                                
                                                                                
        1787-1790          Magnesium (mg)                                       
      DRPNMAGN    29105    0000-1920                                            
                   1713    8888  Blank but applicable                           
                    493    Blank                                                
                                                                                
        1791-1795          Iron (mg)                                            
      DRPNIRON    29105    00000-286.5                                          
                   1713    88888 Blank but applicable                           
                    493    Blank                                                
                                                                                
        1796-1801          Zinc (mg)                                            
      DRPNZINC    29105    000000-0748.3                                        
                   1713    888888  Blank but applicable                         
                    493    Blank                                                
                                                                                
        1802-1805          Copper (mg)                                          
      DRPNCOPP    29105    0000-37.5                                            
                   1713    8888  Blank but applicable                           
                    493    Blank                                                
                                                                                
        1806-1810          Sodium (mg)                                          
      DRPNSODI    29105    00000-33967                                          
                   1713    88888 Blank but applicable                           
                    493    Blank                                                
                                                                                
        1811-1815          Potassium (mg)                                       
      DRPNPOTA    29105    00000-20572                                          
                   1713    88888 Blank but applicable                           
                    493    Blank                                                
                                                                                
        1816-1820          Percent of kilocalories from total fat   See note    
      DRPNKF      29103    00000-083.9                                          
                   1715    88888 Blank but applicable                           
                    493    Blank                                                
                                                                                
                                                                               
                                                                                
                        NHANES III Examination Data File                        
                                                                                
    ------------------------------------------------------------------------    
                             TOTAL NUTRIENT INTAKES                             
    ------------------------------------------------------------------------    
                              NUTRIENT QUANTITIES                               
    ------------------------------------------------------------------------    
    Positions            Item description                                       
    SAS name    Counts       and code                               Notes       
    ------------------------------------------------------------------------    
                                                                                
        1821-1824          Percent of kilocalories from saturated   See note    
      DRPNKSF              fat                                                  
                  29103    0000-51.5                                            
                   1715    8888  Blank but applicable                           
                    493    Blank                                                
                                                                                
        1825-1828          Percent of kilocalories from             See note    
      DRPNKMF              monounsaturated fat                                  
                  29103    0000-37.7                                            
                   1715    8888  Blank but applicable                           
                    493    Blank                                                
                                                                                
        1829-1832          Percent of kilocalories from             See note    
      DRPNKPF              polyunsaturated fat                                  
                  29103    0000-0040                                            
                   1715    8888  Blank but applicable                           
                    493    Blank                                                
                                                                                
        1833-1837          Percent of kilocalories from protein     See note    
      DRPNKP      29103    00000-102.2                                          
                   1715    88888 Blank but applicable                           
                    493    Blank                                                
                                                                                
        1838-1842          Percent of kilocalories from             See note    
      DRPNKC               carbohydrate                                         
                  29103    00000-00120                                          
                   1715    88888 Blank but applicable                           
                    493    Blank                                                
                                                                                
        1843-1847          Percent of kilocalories from alcohol     See note    
      DRPNKA      29103    00000-082.7                                          
                   1715    88888 Blank but applicable                           
                    493    Blank                                                
                                                                                
                                                                               
                        NHANES III Examination Data File                        
                                                                                
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     NOTES                                                                      
                                                                                
                                                                                
     DRPGW:  Total grams of foods and beverages consumed                        
                                                                                
          This is the total gram weight of all foods and beverages,             
          excluding plain drinking water consumed during a 24-hour time         
          period.  Two examinees with DRPSTAT=1 consumed no foods or            
          beverages on the recall day and have values of zero for all food      
          and nutrient intake variables.                                        
                                                                                
                                                                                
     DRPLANG:  Language of interview                                            
                                                                                
          This is the language that was used primarily during the 24-           
          hour recall.  The English/Spanish combination was selected if a       
          significant portion of the interview was conducted in each            
          language.  The "Other language" selection refers to interviews        
          that were conducted in a language other than English or Spanish;      
          interpreters were used to complete interviews in other languages.     
          Note: There are six examinees who do not have 24-hour dietary         
          recall data but do have information pertaining to drinking water,     
          salt use, and food sufficiency; DRPLANG is reported for these         
          examinees.                                                            
                                                                                
                                                                                
     DRPNKA:  Percent of kilocalories from alcohol                              
                                                                                
          DRPNKA=((DRPNALCO*7 kcal/gm alcohol)/DRPNKCAL)*100                    
                                                                                
                                                                                
     DRPNKC:  Percentage of kilocalories from carbohydrate                      
                                                                                
          DRPNKC=((DRPNCARB*4 kcal/gm carbohydrate)/DRPNKCAL)*100               
                                                                                
          The grams of total carbohydrates include sugars and complex           
          carbohydrates.  The carbohydrate values for foods are not derived     
          by direct chemical analysis.  The total carbohydrate figure is        
          the difference between 100 and the sum of the protein, fat, ash,      
          and water.  This approach may overestimate the carbohydrate           
          content of the food.                                                  
                                                                                
                                                                                
     DRPNKF:  Percentage of kilocalories from total fat                         
                                                                                
          DRPNKF=((DRPNTFAT*9kcal/gm fat)/DRPNKCAL)*100                         
                                                                                
                                                                                
     DRPNKMF:  Percentage of kilocalories from monounsaturated fat              
                                                                                
          DRPNKMF=((DRPNMFAT*9kcal/gm fat)/DRPNKCAL)*100                        
                                                                                
                                                                                
     DRPNKP:  Percentage of kilocalories from protein                           
                                                                                
          DRPNKP=((DRPNPROT*4 kcal/gm protein)/DRPNKCAL)*100                    
                                                                                
          One respondent consumed a diet meal beverage exclusively.   When      
          the nutrient composition database value for the protein content of    
                                                                               
          the diet product was used to calculate the percentage of total food   
          energy from protein, the resulting value was greater than 100         
          percent.                                                              
                                                                                
                                                                                
     DRPNKPF:  Percentage of kilocalories from polyunsaturated fat              
                                                                                
          DRPNKPF=((DRPNPFAT*9kcal/gm fat)/DRPNKCAL)*100                        
                                                                                
                                                                                
     DRPNKSF:  Percentage of kilocalories from saturated fat                    
                                                                                
          DRPNKSF=((DRPNSFAT*9kcal/gm fat)/DRPNKCAL)*100                        
                                                                                
                                                                                
     DRPNWATE:  Grams of water                                                  
                                                                                
          This is the amount of water contained in foods and beverages          
          reported as part of the 24-hour dietary recall.  Plain drinking       
          water and spring water usually were excluded from the dietary         
          recall unless beverages were diluted with plain water or water        
          was a component of a combination food that was reported by            
          components such as a homemade fruit and water drink.                  
                                                                                
                                                                                
     DRPQ1:  Usual amount of food consumed                                      
                                                                                
          This question targets the total amount of food and beverages          
          reported, not the types of foods nor the amount of a particular       
          food.  The question targets major, not minor, changes in food         
          consumption that occurred on the 24-hour recall for that day of       
          the week.                                                             
                                                                                
                                                                                
     DRPQ2A:  Quantity of plain drinking water                                  
                                                                                
          The quantity of plain drinking water was reported either in total     
          fluid ounces per day or by specifying the number of glasses of        
          water and the volume per glass using standardized measurement         
          aids.  All responses were converted to fluid ounces.  If the          
          respondent answered "None," meaning that no plain drinking water      
          is usually consumed, the amount of water was reported to be 000       
                                                                                
                                                                                
          fluid ounces; other quantities of plain drinking water were           
          recorded as xxx fluid ounces.  The volume of plain drinking water     
          is in addition to water found in foods and beverages; water from      
          foods and beverages is included in the file variable named            
          DRPNWATE.                                                             
                                                                                
                                                                                
     DRPQ3:  Salt added to food at the table                                    
                                                                                
          Ordinary salt includes sea salt, flavored salts such as garlic,       
          onion, and celery salt, and seasoning salts.  Lite salt is            
          labeled as such and has a reduced sodium content.  Salt               
          substitutes do not contain sodium.                                    
                                                                                
                                                                               
     DRPQ5-DRPQ11:  Food sufficiency questions                                  
                                                                                
          Similar questions about food sufficiency also were asked of a         
          family respondent in the Family Questionnaire found in the            
          Household Adult Data File (see HFF4-8).  The food sufficiency         
          questions from the dietary recall (DRPQ5 - DRPQ11) should be          
          analyzed independently from the food sufficiency questions in the     
          Family Questionnaire (HFF4-8).  The appropriate sample weight         
          should be chosen based on the specific analysis.                      
                                                                                
                                                                                
     DRPRDAY:  Recall day                                                       
                                                                                
          DRPRDAY corresponds to the day of the week for the 24-hour period     
          (midnight to midnight) in which the examinee consumed the foods       
          and beverages listed in the 24-hour recall.  This is the day          
          before their MEC examination.  Note:  There are six examinees         
          who do not have 24-hour dietary recall data but do have               
          information pertaining to drinking water, salt use, and food          
          sufficiency; DRPRDAY is reported for these examinees.                 
                                                                                
                                                                                
     DRPRESP:  Respondent for the 24-hour dietary recall interview              
                                                                                
          If the examinee was under 12 years of age, the first choice for a     
          respondent was the person who was primarily responsible for           
          preparing meals for the child.  In the case of children six to        
          eleven years old, the child and a proxy often participated in the     
          interview.  Interviews completed with the examinee and a proxy        
          respondent were coded as "Examinee and proxy."                        
                                                                                
                                                                                
          1    Examinee:  The examinee completed the interview without          
               assistance from persons other than translators if the            
               interview was conducted in a language other than English or      
               Spanish.                                                         
                                                                                
          2    Proxy:  Someone else answered on behalf of the examinee.         
               This includes parents, guardians, siblings over 11 years         
               old, care providers, and persons responsible for planning or     
               preparing foods eaten by the examinee.                           
                                                                                
          3    Examinee and Proxy:  The examinee and one or more proxies        
               contributed information for the dietary interview.               
                                                                                
               Note:  There are six examinees who do not have 24-hour           
               dietary recall data but do have information pertaining to        
               drinking water, salt use, and food sufficiency; DRPRESP is       
               reported for these examinees.                                    
                                                                                
                                                                                
     DRPSTAT:  Status of interview                                              
                                                                                
          1    Reliable and complete:  The information provided by the          
               respondent was deemed to be reliable and complete.  The          
               count of Phase 1 examinees with DRPSTAT=1 in this file is        
               seventeen fewer than the interim file NCHS released for          
               Phase 1 in September, 1995 (U.S. DHHS, 1995).  The interim       
               file included seventeen examinees whose replicate dietary        
               interview was substituted for a missing initial interview.       
                                                                               
               Replicate recalls were excluded from this final file because     
               the replicate recall data did not reflect dietary intakes        
               for the 24-hour time period prior to the MEC examination         
               when other data were obtained.  Excluding the seventeen          
               replicate recalls does not affect the overall Phase 1            
               findings published earlier.  Also, two examinees with            
               DRPSTAT=1 consumed no foods or beverages on the recall day       
               and have values of zero for all food and nutrient intake         
               variables; percentages of total energy intake from food          
               energy sources are not reported for these examinees and are      
               8-filled.                                                        
                                                                                
          2    Reliable but incomplete:  The information provided by the        
               respondent was reliable but incomplete.  Approximately           
               one-third of the recalls that were coded DRPSTAT=2 were          
               coded incomplete because information for a significant           
               portion of the recall day was not available; two-thirds of       
               the incomplete recalls were coded incomplete because             
               information (other than food amount information) for one or      
               more meals, foods or beverages was not obtained.  The total      
                                                                                
               energy and nutrient intakes for examinees with incomplete        
               recalls were coded "Blank but applicable."  The Individual       
               Foods File includes information for the partial dietary          
               recall interview.                                                
                                                                                
          3    Unreliable:  The information provided by the respondent was      
               deemed to be unreliable.  Total energy and nutrient intakes      
               are coded "Blank but applicable."                                
                                                                                
          4    Interview lost due to computer malfunction or data file          
               transfer problem:  The dietary interview was completed, but      
               the file was lost subsequently due to a computer malfunction     
               or file transfer problem.  Total nutrient intakes are coded      
               "Blank but applicable."                                          
                                                                                
          5    Breast-feeding infant or child:  The foods reported during       
               the dietary recall interview included human milk and the         
               volume of milk consumed was not quantified.  The number of       
               minutes per feeding session was recorded, but it was not         
               possible to calculate total nutrient intakes for infants and     
               children who were breast-fed.  Total nutrient intakes are        
               coded "Blank but applicable."  The foods consumed by nursing     
               infants and children are reported in the                         
               individual foods file.                                           
                                                                                
          8    Blank but applicable:  The examinee should have a dietary        
               recall interview but either was not interviewed or refused       
               the dietary interview component.  Some examinees do not have     
               24-hour dietary recall data because the proxy did not know       
               what the examinee ate the day before.  In some instances,        
               the proxy was able to answer the post-recall questions           
               pertaining to drinking water consumption, salt use, and food     
               sufficiency.                                                     
                                                                                
        Blank  Home examinees were not eligible for the Dietary                 
               Interview component.