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Variable:  S_NETWK   ||  Label:  CMP A 1: ESRD Network                                         Count       Percent
                   01        (CT) Net. of New England                                            245          4.7
                   02        (NY) Net. of N.Y.                                                   563         10.7
                   03        (NJ) Trans-Atlantic R. C.                                           372          7.1
                   04        (PA) ESRD Net. Org. #4                                              337          6.4
                   05        (VA) Mid Atlantic R. C.                                             403          7.7
                   06        (NC) Southeastern Kidney Council                                    397          7.6
                   07        (FL) ESRD Net. of Florida                                           268          5.1
                   08        (MS) Network 8                                                      362          6.9
                   09        (IN) Tri-state R. N.                                                364          6.9
                   10        (IL) Renal Net. of Illinois                                         294          5.6
                   11        (MN) Renal Net. of upper midwest                                    235          4.5
                   12        (MO) ESRD net. #12                                                  207          3.9
                   13        (OK) ESRD net. #13                                                  171          3.3
                   14        (TX) Net. of Texas                                                  393          7.5
                   15        (CO) Inter-mountain ESRD net.                                        25          0.5
                   17        (N-CA) Trans-pacific ESRD Net.                                      199          3.8
                   18        (S-CA) Southern California Net.                                     420          8.0
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NAME     LABEL                                     N          NMISS      MEAN       STD        MIN        PCT_1      PCT_5      MED        PCT_95     PCT_99     MAX
COMPDATE CMP A 3: Date completed                   5243       12         06/19/90   44.75508   01/10/90   01/23/90   03/21/90   06/25/90   08/17/90   09/21/90   03/15/91
S_BORN   CMP A 9: Birth Date                       5198       57         12/31/29   6671.379   01/17/00   06/28/02   12/21/06   10/21/25   03/06/62   04/13/90   12/30/99
FIRSDIAL CMP A10a: Date First Chronic Dialysis     4605       650        12/20/86   634.1157   11/15/10   01/03/86   02/07/86   01/19/87   11/23/87   12/22/87   11/22/88
EARLDIAL CMP A10b: Date Earliest Chronic Dialysis  1226       4029       11/30/86   885.7669   03/12/26   01/09/86   02/14/86   01/10/87   11/29/87   02/20/88   01/26/89
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NAME     LABEL                                     |M                                           |Yes                                         |No     
BLUECROS CMP A11a: Blue Cross                        576   . %                                  1,223 26.1%                                  3,456 73.9%
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NAME     LABEL                                     |M                                           |Yes                                         |No     
MEDICARE CMP A11b: Medicare                          424   . %                                  2,735 56.6%                                  2,096 43.4%
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NAME     LABEL                                     |M                                           |Yes                                         |No     
MEDICAID CMP A11c: Medicaid                          572   . %                                    949 20.3%                                  3,734 79.7%
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NAME     LABEL                                     |M                                           |Yes                                         |No     
PRIVATE  CMP A11d: Private                           589   . %                                  1,370 29.4%                                  3,296 70.6%
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NAME     LABEL                                     |M                                           |Yes                                         |No     
VA       CMP A11e: VA                                620   . %                                     65  1.4%                                  4,570 98.6%
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NAME     LABEL                                     |M                                           |Yes                                         |No     
OTH_INS  CMP A11f: Other insurance                   583   . %                                    487 10.4%                                  4,185 89.6%
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NAME     LABEL                                     |M                            |Yes                          |No                           |4      
NO_INS   CMP A11g: No insurance                      611   . %                     362  7.8%                   4,281 92.2%                       1  0.0%
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NAME     LABEL                                     |M                    |Active Smoker         |Former Smoker        |Smoker, time unk.     |Non-Smoker       
SMOKING  CMP B 1: Smoking Status                   1,782   . %             745 21.5%              737 21.2%             117  3.4%            1,874 54.0%

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NAME     LABEL                                     |M                            |Yes                          |No                           |Suspected
CHD_CAD  CMP B 2a: Prior Dx of CHD/CAD               634   . %                   1,601 34.6%                   2,786 60.3%                     234  5.1%
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NAME     LABEL                                     |M                            |Yes                          |No                           |Suspected
ANGINA   CMP B 2b: Angina                            786   . %                   1,029 23.0%                   3,301 73.9%                     139  3.1%
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NAME     LABEL                                     |M                            |Yes                          |No                           |3      
CABG     CMP B 2c: Bypass surgery                    792   . %                     221  5.0%                   4,241 95.0%                       1  0.0%

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NAME     LABEL                                     |M                            |Yes                          |No                           |3      
ANGIOPLA CMP B 2d: Coronary angioplasty              877   . %                      35  0.8%                   4,342 99.2%                       1  0.0%
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NAME     LABEL                                     |M                            |Yes                          |No                           |3      
ANGIOGRA CMP B 2e: Coronary angiography              927   . %                     210  4.9%                   4,096 94.6%                      22  0.5%
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NAME     LABEL                                     |M                            |Yes                          |No                           |3      
AN_GRABN CMP B 2e: Coronary angiography abnormal?  4,686   . %                     139 24.4%                     425 74.7%                       5  0.9%

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NAME     LABEL                                     |M                            |Yes                          |No                           |3      
CARDARR  CMP B 2f: Cardiac arrest                    829   . %                      48  1.1%                   4,374 98.8%                       4  0.1%
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NAME     LABEL                                     |M                            |Yes                          |No                           |3      
MI       CMP B 2g: Myocardial infarction             720   . %                     685 15.1%                   3,757 82.8%                      93  2.1%

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NAME     LABEL                                     |M                            |Yes                          |No                           |Suspected
CEREBROV CMP B 3a: Cerebrovascular Accident          721   . %                     453 10.0%                   4,022 88.7%                      59  1.3%
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NAME     LABEL                                     |M                    |Yes                   |No                   |Suspected             |5        
TIA      CMP B 3b: Transient ischemic attacks      1,090   . %             146  3.5%            3,956 95.0%              62  1.5%                1  0.0%
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NAME     LABEL                                     |M                            |Yes                          |No                           |Suspected
PVD      CMP B 4a: Peripheral Vascular Disease       730   . %                     805 17.8%                   3,547 78.4%                     173  3.8%
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NAME     LABEL                                     |M                            |Yes                          |No                           |Suspected
AMPUTATA CMP B 4b: Amputation due to PVD             694   . %                     242  5.3%                   4,312 94.5%                       7  0.2%
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NAME     LABEL                                     |M                            |Yes                          |No                           |3      
ABS_PULS CMP B 4c: Absent foot pulses                920   . %                     344  7.9%                   3,971 91.6%                      20  0.5%
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NAME     LABEL                                     |M                            |Yes                          |No                           |3      
CLAUDIC  CMP B 4d: Claudication                    1,105   . %                     312  7.5%                   3,812 91.9%                      26  0.6%
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NAME     LABEL                                     |M                            |Yes                          |No                           |3      
ARTERLO  CMP B 4e: Arteriography                   1,187   . %                     189  4.6%                   3,866 95.0%                      13  0.3%
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NAME     LABEL                                     |M                            |Yes                          |No                           |4      
CONG_HRT CMP B 5a: Congestive heart failure          751   . %                   1,978 43.9%                   2,525 56.1%                       1  0.0%
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NAME     LABEL                                     |M                                           |Yes                                         |No     
PULM_EDE CMP B 5b: Pulmonary edema                   976   . %                                    850 19.9%                                  3,429 80.1%
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NAME     LABEL                                     |M                                           |Yes                                         |No     
PERICARD CMP B 5c: Pericarditis                      997   . %                                    295  6.9%                                  3,963 93.1%
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NAME     LABEL                                     |M                                           |Yes                                         |No     
ARRHYTHM CMP B 5d: Arrhythmia                        959   . %                                    856 19.9%                                  3,440 80.1%
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NAME     LABEL                                     |M                                           |Yes                                         |No     
ATR_FIBR CMP B 5e: Atrial fibrillation             1,048   . %                                    433 10.3%                                  3,774 89.7%
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NAME     LABEL                                     |M                                           |Yes                                         |No     
HX_HYPER CMP B 6: History of hypertension            233   . %                                  4,197 83.6%                                    825 16.4%
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NAME     LABEL                                     |M                                           |Yes                                         |No     
PR_HYPER CMP B 6a: Hypertension treated pre ESRD   1,403   . %                                  3,508 91.1%                                    344  8.9%
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NAME     LABEL                                     |M                                           |Yes                                         |No     
SI_HYPER CMP B 6b: Hypertension treated since ESR  1,394   . %                                  3,396 88.0%                                    465 12.0%

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NAME     LABEL                                     |M                            |Yes                          |No                           |3      
DX_DIAB  CMP B 7: Prior Dx of Diabetes               268   . %                   2,077 41.6%                   2,909 58.3%                       1  0.0%

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NAME     LABEL                                     N          NMISS      MEAN       STD        MIN        PCT_1      PCT_5      MED        PCT_95     PCT_99     MAX
DUR_DIAB CMP B 7b: Duration of Diabetes (years)    1040       4215       18.07981   8.966432   1          2          3          19         33         41         86
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NAME     LABEL                                     |M                            |IDDM (Juv. Type I)           |NIDDM (Adult Type II)        |7                    
TYP_DIAB CMP B 7c: Type of diabetic                3,436   . %                     869 47.8%                     949 52.2%                       1  0.1%
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NAME     LABEL                                     |M                                           |Yes                                         |No     
DIAB_RET CMP B 7d: Diabetic retinopathy            3,582   . %                                  1,159 69.3%                                    514 30.7%
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NAME     LABEL                                     |M                    |Active                |Stopped              |Never                 |4      
INSULIN  CMP B 7e: Insulin therapy ever            3,386   . %           1,235 66.1%              257 13.8%             375 20.1%                2  0.1%
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NAME     LABEL                                     |M                            |Yes                          |No                           |3      
COPD     CMP B 8a: Chronic obstructive pulm. dis.    689   . %                     576 12.6%                   3,989 87.4%                       1  0.0%
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NAME     LABEL                                     |M                                           |Yes                                         |No     
ASTHMA   CMP B 8b: Asthma                            816   . %                                    149  3.4%                                  4,290 96.6%
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NAME     LABEL                                     |M                                           |Yes                                         |No     
OXYGEN   CMP B 8c: Home oxygen prescribed            791   . %                                     35  0.8%                                  4,429 99.2%
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NAME     LABEL                                     |M                                           |Yes                                         |No     
NEOPLASM CMP B 9: Neoplasms                          763   . %                                    454 10.1%                                  4,038 89.9%

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NAME     LABEL                                     |M                                           |Yes                                         |No     
METASTAS CMP B 9c: Known metastases                4,844   . %                                     90 21.9%                                    321 78.1%
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NAME     LABEL                                     |M                                           |Yes                                         |No     
HEPATIT  CMP B10a: Hepatitis                         696   . %                                    103  2.3%                                  4,456 97.7%
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NAME     LABEL                                     |M                    |0                     |Yes                  |No                    |8      
CIRRHOS  CMP B10b: Cirrhosis                         845   . %               1  0.0%               86  2.0%           4,322 98.0%                1  0.0%

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ICD9_5   CMP B11 5: Major diagnosis - ICD9 code    5,253   . %                                      1 50.0%                                      1 50.0%

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ICD9_6   CMP B11 6: Major diagnosis - ICD9 code    5,255   . %
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NAME     LABEL                                     N          NMISS      MEAN       STD        MIN        PCT_1      PCT_5      MED        PCT_95     PCT_99     MAX
HT_CM    CMP C 1: Height - cm.                     3612       1643       168.2195   13.92335   33         134        152        168        185        193        394
PRI_WTKG CMP C 2: Weight - kg. before first dialy  4587       668        72.54131   40.25591   0          31         46         69         103        137        880
AFT_WTKG CMP C 3b: Weight - kg. after first dialy  4263       992        68.51161   34.42053   2          32         44         65         98         126        850
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NAME     LABEL                                     |M                            |Obese/overweight             |Under-nourished/cachetic     |Well-nourished          
NUT_STAT CMP C 4: Nutritional Status               3,639   . %                     953 59.0%                     658 40.7%                       5  0.3%
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NAME     LABEL                                     N          NMISS      MEAN       STD        MIN        PCT_1      PCT_5      MED        PCT_95     PCT_99     MAX
PRI_DBP  CMP C 5a: DBP at first dialysis/predialy  4308       947        82.56685   17.27284   0          48         60         80         110        130        190
PRI_SBP  CMP C 5a: SBP at first dialysis/predialy  4340       915        151.4737   29.87544   1          86         108        150        200        230        280
AFT_DBP  CMP C 5b: DBP after first dialysis        4369       886        77.94186   18.73443   0          50         60         80         100        110        700
AFT_SBP  CMP C 5b: SBP after first dialysis        4392       863        143.0453   24.26345   40         90         104        140        180        202        240
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Variable:  PAT_STAT  ||  Label:  CMP C 6: Patient status at one month                          Count       Percent
                                                                                                 154           . 
                   1         Dead                                                                 88          1.7
                   2         Hemodialysis                                                      3,943         77.3
                   3         Peritoneal dialysis                                                 990         19.4
                   4         Transplanted                                                         12          0.2
                   5         Recovered renal function                                             12          0.2
                   6         Lost to follow-up/transfered                                         55          1.1
                   8         8                                                                     1          0.0
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NAME     LABEL                                     N          NMISS      MEAN       STD        MIN        PCT_1      PCT_5      MED        PCT_95     PCT_99     MAX
S_DIED   CMP C 7: Date of death                    222        5033       08/11/87   327.2492   02/17/86   03/05/86   05/14/86   07/15/87   04/12/89   04/17/90   10/29/90
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NAME     LABEL                                     |M                            |In Center                    |Home Training                |At Home      
HEMO_LOC CMP C 8a: Hemo - dialysis location        1,191   . %                   3,929 96.7%                      92  2.3%                      43  1.1%
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NAME     LABEL                                     N          NMISS      MEAN       STD        MIN        PCT_1      PCT_5      MED        PCT_95     PCT_99     MAX
HEMO_MIN CMP C 8b: Hemo - Usual min. per treatmen  3964       1291       206.4571   31.88925   3          120        180        210        240        270        420
SESSIONS CMP C 8c: Hemo - No. sessions per week    3931       1324       2.851946   0.378773   1          2          2          3          3          3          6
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NAME     LABEL                                     |M                                           |Yes                                         |No     
REUSE    CMP C 8d: Hemo - reuse of dialyzer        1,462   . %                                  2,161 57.0%                                  1,632 43.0%
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NAME     LABEL                                     N          NMISS      MEAN       STD        MIN        PCT_1      PCT_5      MED        PCT_95     PCT_99     MAX
WTLOSSKG CMP C 8e: Hemo - highest wt loss - kgs.   3394       1861       2.889806   1.611262   0          0          1          3          5          7          32
BFR      CMP C 8f: Hemo - blood flow rate          3808       1447       247.3687   57.58851   25         150        200        250        350        500        800

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Variable:  ACCESS1   ||  Label:  CMP C 8h1: Hemo - Vascular access (1)                         Count       Percent
                                                                                               1,645           . 
                   0         0                                                                    54          1.5
                   1         Fistula                                                           1,352         37.5
                   2         Goretex graft                                                     1,109         30.7
                   3         Bovine graft                                                        103          2.9
                   4         Temporary Line                                                      817         22.6
                   5         Permanent subclavian catheter                                        80          2.2
                   6         Other                                                                95          2.6
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Variable:  ACCESS2   ||  Label:  CMP C 8h2: Hemo - Vascular access (2)                         Count       Percent
                                                                                               3,274           . 
                   0         0                                                                    62          3.1
                   1         Fistula                                                             454         22.9
                   2         Goretex graft                                                       659         33.3
                   3         Bovine graft                                                         51          2.6
                   4         Temporary Line                                                      509         25.7
                   5         Permanent subclavian catheter                                       116          5.9
                   6         Other                                                               129          6.5
                   7         7                                                                     1          0.1
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NAME     LABEL                                     |M                            |Home                         |Home Training                |In-center    
PERI_LOC CMP C 9a: Peri - dialysis location        4,242   . %                     632 62.4%                     306 30.2%                      75  7.4%
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NAME     LABEL                                     |M                            |CAPD                         |CCPD                         |IPD    
PERI_TYP CMP C 9b: Peri - dialysis type            4,248   . %                     818 81.2%                     103 10.2%                      86  8.5%
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NAME     LABEL                                     N          NMISS      MEAN       STD        MIN        PCT_1      PCT_5      MED        PCT_95     PCT_99     MAX
EXCH_DAY CMP C 9c: Peri - exchanges per treatment  915        4340       4.926776   4.40212    1          3          3          4          10         24         48
EXCH_LIT CMP C 9d: Peri - liters per exchange      844        4411       1.859242   0.395073   0.2        0.4        1          2          2          3          4.2
TRMT_DAY CMP C 9e: Peri - treatment days per week  911        4344       6.625686   1.141312   1          2          3          7          7          7          7
S_TDATE  CMP C10a: Date of transplant              70         5185       06/07/87   534.3032   06/24/78   06/24/78   03/05/86   06/22/87   07/25/89   03/15/90   03/15/90
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NAME     LABEL                                     |M                    |Cadaver               |Living Related       |Living Unrelated      |7               
DONORSRC CMP C10b: Donor source                    5,197   . %              47 81.0%                8 13.8%               2  3.4%                1  1.7%
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NAME     LABEL                                     N          NMISS      MEAN       STD        MIN        PCT_1      PCT_5      MED        PCT_95     PCT_99     MAX
PSYCH_EV CMP C11: Date of psychosocial evaluation  4016       1239       02/03/87   501.5533   08/20/11   12/12/85   02/20/86   03/02/87   01/04/88   05/15/88   02/10/91
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NAME     LABEL                                     |M                                           |Yes                                         |No     
IND_EAT  CMP C12a: Independent eating                321   . %                                  4,788 97.0%                                    146  3.0%
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NAME     LABEL                                     |M                                           |Yes                                         |No     
IND_XFER CMP C12b: Independent transferring          336   . %                                  4,392 89.3%                                    527 10.7%
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NAME     LABEL                                     |M                                           |Yes                                         |No     
IND_AMBU CMP C12c: Independent Ambulating            316   . %                                  4,409 89.3%                                    530 10.7%

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NAME     LABEL                                     |M                |Single           |Married          |Widowed          |Divorced         |Separated
MAR_STAT CMP C13: Marital status                     319   . %         770 15.6%       2,556 51.8%         946 19.2%         449  9.1%         215  4.4%
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NAME     LABEL                                     |M                |Yes              |No               |Nursing home, ins|Homeless         |8                        
ALONE    CMP C14: Living alone                       344   . %         796 16.2%       3,858 78.6%         248  5.0%           8  0.2%           1  0.0%
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NAME     LABEL                                     N          NMISS      MEAN       STD        MIN        PCT_1      PCT_5      MED        PCT_95     PCT_99     MAX
HOUSMEMB CMP C15: Household members                3899       1356       2.691972   1.399906   0          1          1          2          5          7          24
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Variable:  PRIEMPLV  ||  Label:  CMP C16a: Highest emp level one yr prior                      Count       Percent
                                                                                                 839           . 
                   1         Employed full time or full time student                           1,111         25.2
                   2         Employed part time or part time student                             157          3.6
                   3         Homemaker                                                           510         11.5
                   4         Retired                                                           1,610         36.5
                   5         Unemployed                                                          309          7.0
                   6         Disabled                                                            639         14.5
                   7         Other                                                                80          1.8
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Variable:  ONSEMPLV  ||  Label:  CMP C16b: Employment level at onset of E                      Count       Percent
                                                                                                 706           . 
                   1         Employed full time or full time student                             700         15.4
                   2         Employed part time or part time student                             145          3.2
                   3         Homemaker                                                           477         10.5
                   4         Retired                                                           1,733         38.1
                   5         Unemployed                                                          479         10.5
                   6         Disabled                                                            923         20.3
                   7         Other                                                                91          2.0
                   9         9                                                                     1          0.0
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NAME     LABEL                                     |M                    |Less then 12 Yrs.     |High School Grad     |Some College          |College Grad     
EDUCAT   CMP C17: Education                        2,079   . %           1,362 42.9%            1,037 32.7%             408 12.8%              369 11.6%
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Variable:  OCCUPAT   ||  Label:  CMP C18: Occupation level before ESRD                         Count       Percent
                                                                                               1,245           . 
                   1         Clerical                                                            324          8.1
                   2         Professional                                                        502         12.5
                   3         Tradeperson                                                         671         16.7
                   4         Manual Labor                                                      1,061         26.5
                   5         Housewife                                                           539         13.4
                   6         Student                                                              95          2.4
                   7         Other                                                               815         20.3
                   8         8                                                                     3          0.1
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NAME     LABEL                                     N          NMISS      MEAN       STD        MIN        PCT_1      PCT_5      MED        PCT_95     PCT_99     MAX
CREAT1   CMP D1 1: Serum Creat 1-12mo pre CMD      2800       2455       7.535821   4.131688   0.5        1.35       2.5        6.8        15.05      22         64

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Means and Frequencies for Dataset saf.casemixs, Case Mix Severity Special Study patient data, Sorted by label || Page 32

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NAME     LABEL                                     N          NMISS      MEAN       STD        MIN        PCT_1      PCT_5      MED        PCT_95     PCT_99     MAX
CREAT2   CMP D1 2a: Serum Creat first CMD          2817       2438       9.723287   4.809891   0.7        3.1        4.4        8.8        18.1       25.7       88.7
CREAT3   CMP D1 2b: Serum Creat after first CMD    2312       2943       8.753806   3.803177   1.4        2.7        4.1        8.2        15.2       19.6       79.4
CREAT4   CMP D1 3: High Serum Creat before onset   2844       2411       9.45661    4.378985   0.1        2.2        4          8.6        17.7       23.4       38.2
CREAT5   CMP D1 4: High Serum Creat 1st month      3954       1301       9.234598   3.747151   1.6        3.1        4.4        8.7        15.9       20.3       71
CREAT6   CMP D1 5: Serum Creat 2-6 weeks           4271       984        8.926387   3.804183   0.7        2.7        4          8.3        15.6       19.7       80
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NAME     LABEL                                     |M                                           |Yes                                         |No     
XRAY     CMP D2 1: Cardiomegaly by X-ray           1,638   . %                                  1,792 49.5%                                  1,825 50.5%
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NAME     LABEL                                     |M                                           |Yes                                         |No     
EKG      CMP D2 2a: Left vent hypertrophy by EKG   1,928   . %                                  1,171 35.2%                                  2,156 64.8%
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NAME     LABEL                                     |M                                           |Yes                                         |No     
ECHOCARD CMP D2 2b: Left vent hypertrophy echoca   2,834   . %                                    576 23.8%                                  1,845 76.2%
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NAME     LABEL                                     N          NMISS      MEAN       STD        MIN        PCT_1      PCT_5      MED        PCT_95     PCT_99     MAX
BILIRUB  CMP D3 1: Bilirubin total                 3987       1268       0.412265   1.207629   0          0.1        0.1        0.3        0.8        2          62
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NAME     LABEL                                     |M                                           |Positive                                    |Negative
HBSAG    CMP D3 2: HBsAG                             963   . %                                     86  2.0%                                  4,206 98.0%
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NAME     LABEL                                     N          NMISS      MEAN       STD        MIN        PCT_1      PCT_5      MED        PCT_95     PCT_99     MAX
CHOLEST  CMP D3 3a: Cholesterol                    3635       1620       197.3761   60.87567   0          93         118        190        300        388        899
TRIGLY   CMP D3 3b: Triglycerides                  2594       2661       208.4495   129.5827   1          44         71         178        441        717        999
SUGAR    CMP D3 4: Highest blood sugar             4433       822        165.5888   108.5792   2          67         81         129        388        628        999
PHOSPH   CMP D3 5: Serum phosphorous               4483       772        5.315748   3.431093   0.2        1.5        2.6        5          8.6        10.8       95
HEMATO   CMP D3 6: Hematocrit                      4494       761        26.42034   4.641978   9          16         19         26         34         39         56
BUN_PRE  CMP D3 7a: BUN - predialysis treatment    4555       700        71.73238   28.43767   5          26         36         68         118        155        831
BUN_AFT  CMP D3 7b: BUN - post dialysis treatmen   494        4761       42.32389   24.91243   3          7          15         36         88         141        205
SER_ALBU CMP D3 8: Serum albumin                   4529       726        3.464473   0.575987   0          1.8        2.5        3.5        4.3        4.6        9.5
PROVUSRD USRDS assigned facility ID                5126       129        1365.101   769.5996   30         55         170        1348       2613       2770       2808