Dietary Data Structure & Contents
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.
Task 2: Describe Dietary Recall Data Files
Data collected from the dietary recall interviews are found in four files located in the Examination section.
Task 3: Describe Food Frequency Data Files
Data collected from the food frequency questionnaires are found in two files located in the Questionnaire section.
Task 4: Describe Dietary Supplement Data Files
Data collected from the dietary supplement interviews are found in five files located in the Questionnaire section.