The list below outlines the objectives for each course in the tutorial. After completing the modules, users should be able to do the following:
Task 1: Describe the History of Dietary Data Collection
Task 2: Describe NHANES Dietary Data Collection Methods
Task 3: Describe Uses of the Dietary Data
Task 1: Navigate the NHANES Homepage
Task 2: Locate Datasets on the NHANES Website
Task 3: Locate Survey Background Information
Task 4: Locate the Analytic and Reporting Guidelines
Task 5: Locate Other Useful Information on the NHANES Website
Task 1: Describe How Dietary Data Fit into the NHANES Data Structure
Task 2: Describe Dietary Recall Data
Files
Task 3: Describe Food Frequency Data
Files
Task 4:
Describe Dietary Supplement Data Files
Task 1: Describe the Food and
Nutrient Database for Dietary Studies (FNDDS)
Task 2: Describe the USDA Food
Coding Scheme
Task 3: Describe the Food
Surveys Research Group (FSRG)-Defined
Food Groups
Task 4: Describe the What’s In the
Foods You Eat Search Tool
Task 5: Describe the MyPyramid
Equivalents Database
Task 1: Explain NHANES Survey Design
Task 2:
Explain NHANES Sample Weights
Task 1: Identify Dietary Recall
Variables and Their File Locations
Task 2: Identify Food Frequency
Variables and Their File Locations
Task 3: Identify Dietary Supplement
Variables and Their File Locations
Task 4:
Identify Correct Sample Weights and Their File Locations
Task 1: Create Folders
Task 2: Download Data Files and
Documentation
Task 3:
Extract and Copy NHANES Data Files in a Permanent Library
Task 1: Merge NHANES Data
Task 2:
Append NHANES Data
Task 1: Identify, Recode, and
Evaluate Missing Data
Task 2: Check for Skip Patterns and
Explain How They Affect Results
Task 3: Check the Data for
Influential Outliers
Task 4:
Create New Variables
Task 1: Define and Assign Formats and Labels
Task 1: Create a permanent dataset in a SAS library
Task 1: Define Measurement Error
Task 2: Explain Usual Intake and Day-To-Day Variation
in Dietary Intakes
Task 3: Check for Data Symmetry
Task 4:
Identify Analytic Implications about Different Types of Dietary Data
Task 1: Use SUDAAN and
SAS to Estimate Variance
Task 2: Use SUDAAN to
Analyze Subgroups
Task 1: Estimate Mean Food Intakes
Task 2: Estimate Mean Nutrient
Intakes from Foods and Beverages
Task 3: Estimate Mean Nutrient
Intakes from Supplements
Task 4: Estimate Mean Total Nutrient
Intakes
Task 1: Estimate Food Sources of
Nutrients
Task 2: Estimate Population-level Ratios of intake
Task 1:
Estimate Prevalence of Supplement Intake
Task 2: Estimate
Distributions of Food Intake
Task 3: Estimate
Distributions of Nutrient Intake
Task 4: Estimate
Distributions of Total Nutrient Intake from Foods and Supplements
Module 17. Estimate Prevalence and Examine Relationships Using Supplement Data
Module 18. Model Usual Intake Using Dietary Recall Data
Module 19. Estimate Population-Level Distributions of Usual Dietary Intake
Module 20. Evaluate the Effects of Covariates on Usual Dietary Intakes
Module 21. Examine the Relationship Between Usual Dietary Intake and Some Outcome Measure
Module 22. Examining Usual Total Nutrient Intake from Supplements and Diet
National Center for Health
Statistics
3311 Toledo Road
Hyattsville, MD 20782
Phone: 1-866-441-NCHS (6247)
For data inquiries, use
nchsquery@cdc.gov
Problems or comments about the Tutorial?
Email the Tutorial Team:
NHANESWebTutorial@cdc.gov
Centers for Disease Control and Prevention, 1600 Clifton Rd, Atlanta, GA 30333, U.S.A
Tel: (404) 639-3311 / Public Inquiries: (404) 639-3534 / (800) 311-3435