NHANES Dietary Web Tutorial Roadmap
Question 
Module Number 
Module Name  Section/Course 

What is this tutorial all about?  Introduction  Tutorial Home  
How does this tutorial work and what knowledge and skills do I need to complete it?  Logistics  
What are the tutorial’s learning objectives?  Objectives  
How can I get Continuing Education credits for completing the tutorial?  Continuing Professional Education 

What topics are covered in the tutorial?  AZ index  
What types of dietary data are collected in NHANES?  1  Dietary Data Overview 
Dietary Data Survey Orientation 
How can I find dietary and other information on the NHANES website?  2  Navigate NHANES Website 

How are the dietary data structured?  3  Dietary Data Structure & Contents 

What other dietary data resources might I need for my research?  4  Resources for Dietary Data Analysis 

What do I need to know about the NHANES survey design and sample weighting before I start preparing my analytic dataset?  5  Overview of NHANES
Survey Design and Weights 

How do I identify and locate the variables I need for my analysis?  6  Locate Variables  Preparing a Dietary Analytic Dataset 
How do I download the data and documentation files I need for my analysis?  7  Download Data Files  
How do I create one dataset for my analysis if I’m using data from more than one file or more than one 2year survey cycle?  8  Merge & Append Datasets 

How do I adjust my dataset to accommodate missing data, skip patterns, or outliers and how do I create new variables?  9  Review Data & Create New Variables 

What tools can I use to describe my variables and their numeric values?  10  Format & Label Variables 

How do I permanently save my dataset?  11  Save a Dataset  
What are the statistical considerations peculiar to dietary data that I need to be aware of before starting my analysis?  12  Identify Important Statistical Considerations Regarding Dietary Data Analyses  Basic Dietary Analyses 
How do I calculate variance estimates and analyze subgroups of participants from NHANES?  13  Estimate Variance and Analyze Subgroups 

How do I determine mean usual intakes of nutrients and foods?  14  Estimate Population Mean Intakes 

How do I estimate ratios, including proportions and percentages, using dietary data?  15  Estimate Ratios  
How do I test statistical hypotheses about population parameters  16  Test Hypotheses  
How do I estimate the prevalence of dietary supplement intake and examine the relationship between supplement intake and some health measure?  17  Estimate Prevalence of Supplement Use and Examine Relationships Using Supplement Data  Advanced Dietary Analyses 
What methods are available to estimate usual intake using dietary recall data?  18  Model Usual Intake Using Dietary Recall Data  
How do I estimate distributions of food or nutrient intake?  19  Evaluate the Effects of Covariates on Usual Dietary Intakes  
How do I determine the importance of different factors on food and nutrient intake?  20  Estimate PopulationLevel Distributions of Usual Dietary Intake  
How do I examine the relationship between usual food or nutrient intake and some outcome measure, such as body weight?  21  Examine the Relationship Between Usual Dietary Intake and Some Outcome Measure  
How do I combine data from dietary recalls and dietary supplement questionnaires to estimate usual total nutrient intake?  22  Examine Usual Total Nutrient Intake from Supplements and Diet 
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