# Presentation: 854309

**Dietary Assessment Components in the NHANES**

**Centers for Disease Control and Prevention**
**National Center for Health Statistics**

**	**

## Physical Examination
	Anthropometric measurements
	Nutritional biochemistries and hematologies
Dietary Assessment
	Dietary behavior
	Food security 
	Nutrient intake and food consumption
Physical Fitness and Physical Functioning

**	****Anthropometric measurements**
**	****Nutritional biochemistries and hematologies**
**Dietary Assessment**
**	****Dietary behavior**
**	****Food security **
**	****Nutrient intake and food consumption**
**Physical Fitness and Physical Functioning**

**NHANES Nutrition Assessments**

## Physical Examination
	Anthropometric measurements
	Nutritional biochemistries and hematologies
Dietary Assessment
	Dietary behavior
	Food security 
	Nutrient intake and food consumption
Physical Fitness and Physical Functioning

**	****Anthropometric measurements**
**	****Nutritional biochemistries and hematologies**
**Dietary Assessment**
**	****Dietary behavior**
**	****Food security **
**	****Nutrient intake and food consumption**
**Physical Fitness and Physical Functioning**

**NHANES Nutrition Assessments**

## Dietary supplements use
Milk consumption patterns
Salt use
Breastfeeding practices
Weight control practices
Eating-out habits
Use of special diets

**Milk consumption patterns**
**Salt use**
**Breastfeeding practices**
**Weight control practices**
**Eating-out habits**
**Use of special diets**

**Dietary Behavior Assessments**

## Vegetable consumptions 
Alcohol consumptions
Meal patterns for elderly 
Poultry skin/Meat fat trimming
Plain water consumptions 
Fish and shellfish consumptions

**Alcohol consumptions**
**Meal patterns for elderly **
**Poultry skin/Meat fat trimming**
**Plain water consumptions **
**Fish and shellfish consumptions**

**Dietary Behavior Assessments**

## Food security modules
	Low income family
	Household food security
	Individual food security
Food programs participation

**	****Low income family**
**	****Household food security**
**	****Individual food security**
**Food programs participation**

**Food Security Assessments**

## 24-hour recall information
	Day 1: 100% sample
	Day 2: 10% sample
Eligible sample: all ages
Interview administration
	Bilingual dietary interviewers
	Proxy interview for children

**	****Day 1: 100% sample**
**	****Day 2: 10% sample**
**Eligible sample: all ages**
**Interview administration**
**	****Bilingual dietary interviewers**
**	****Proxy interview for children**

**Dietary Recall Component****NHANES 1999-2001**

## Slide 8

## Conducted on a subsample of NHANES 1999-2000 primary sampling units (PSUs)
To evaluate the operational feasibility of the telephone interview mode

**To evaluate the operational feasibility of the telephone interview mode**

**Dietary Interview Mode Evaluation Study (DIMES) in NHANES 1999-2001**

## NHANES 1999-2001 and DIMES

## Electronic recording form	
Structured interview format
	Multiple pass format
 	Standardized food probes
	Additions to foods
	Combination type coding
Flexible update options

**Structured interview format**
**	****Multiple pass format**
** ****	****Standardized food probes**
**	****Additions to foods**
**	****Combination type coding**
**Flexible update options**

**Dietary Recall Interview System**** NHANES 1999-2001**

## Multiple Pass Format

** ****	**

**Dietary Recall Interview System**** NHANES 1999-2001**

- Quick List

- Time, Occasion and Place
- (includes Frequently Forgotten Foods List)

- Food Details

- Final Review

## Quick List Screen

## Food Probe Screen

## Final Review Screen

## Electronic file transmittal	
FIAS coding
	Standardized coding guidelines
	USDA food codes
 	Recipe modification option
	Market check procedures
USDA 94-98 Survey Nutrient Database

**FIAS coding**
**	****Standardized coding guidelines**
**	****USDA food codes**
** ****	****Recipe modification option**
**	****Market check procedures**
**USDA 94-98 Survey Nutrient Database**

**Dietary Recall Data Processing**** NHANES 1999-2001**

## Completeness & reliability review
Online food probe review
Electronic communications with interviewers
Taped interviews
Double coding
Coder reports
Field observation

**Online food probe review**
**Electronic communications with interviewers**
**Taped interviews**
**Double coding**
**Coder reports**
**Field observation**

**Dietary Recall Quality Control**

## Total nutrient intakes file
Individual foods file
Dietary behavior questionnaire file
Weight history questionnaire file

**Individual foods file**
**Dietary behavior questionnaire file**
**Weight history questionnaire file**

**NHANES 1999-2000****Dietary Public Release Files**

## 24-hour dietary recall (new USDA automated system)

**NHANES 2002 Dietary Assessment**

## Quick List Screen

## Food Detail Screen

## 24-hour dietary recall (new USDA automated system)

**NHANES 2002 Dietary Assessment**

**Food frequency (focused)**
**General questions**
**Supplements/medications (detailed)**
**Food security**

**Second day recall on ALL persons (telephone)**

## Dietary Assessment Across NHANES: Breadth and Depth of Components

**24-hour recall**

**supplements**

**food security**

**Supplements**

**24-hr**
**recall**

**FFQ**

**Food program**
**participation**

**Food security**

**Other**