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 | ||
| What topics are covered in the tutorial? | A-Z 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 2-year 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 Population-Level 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 |
Contact Us:
- National Center for Health Statistics
3311 Toledo Rd
Hyattsville, MD 20782 - 1 (800) 232-4636
- cdcinfo@cdc.gov
