Dietary Data Structure & Contents

Purpose

This module describes how Continuous NHANES dietary data are structured and organized. In this context, structure refers to the way the data are organized within the NHANES framework.

 

Task 1: Describe How Dietary Data Fit into the NHANES Data Structure

Before you begin a search for any specific diet-related variables on the website, you should first understand the NHANES data structure and how diet files fit in.

• Key Concepts about How Dietary Data Fit into the NHANES Data Structure

 

Task 2: Describe Dietary Recall Data Files

Data collected from the dietary recall interviews are found in four files located in the Examination section.

• Key Concepts about Dietary Recall Data Files

 

Task 3: Describe Food Frequency Data Files

Data collected from the food frequency questionnaires are found in two files located in the Questionnaire section.

• Key Concepts about Food Frequency Data Files

 

Task 4: Describe Dietary Supplement Data Files

Data collected from the dietary supplement interviews are found in five files located in the Questionnaire section.

• Key Concepts about Dietary Supplement Data Files