National Health and Nutrition Examination Survey

NHANES 2017-March 2020 Pre-pandemic

The NHANES program suspended field operations in March 2020 due to the coronavirus disease 2019 (COVID-19) pandemic. As a result, data collection for the NHANES 2019-2020 cycle was not completed and the collected data are not nationally representative. Therefore, data collected from 2019 to March 2020 were combined with data from the NHANES 2017-2018 cycle to form a nationally representative sample of NHANES 2017-March 2020 pre-pandemic data. Please see the links below for a brief overview and analytic guidance as well as a National Health Statistics Report on selected estimates for obesity, diabetes, hypertension, and oral health for additional information on the use of the data.

Data, Documentation, Codebooks

people_01 Demographics Data
food_01 Dietary Data
medical_03 Examination Data
lab_05 Laboratory Data
chat_01 Questionnaire Data
alert_02 Limited Access Data

Contents in Detail

clipboard_01 Questionnaire Instruments
lab_05 Laboratory Methods
book_03 Procedure Manuals
paper_02 Brochures and Consent Documents

Using the Data

paper_03 Brief Overview and Analytic Guidance
paper_03 Estimates of Selected Health Conditions
paper_01 Release Notes
chart_03 Survey Methods and Analytic Guidelines
map_01 Response Rates and Population Totals
clothes_01 NHANES Web Tutorial

Contents at a Glance

calendar_01 What's New
paper_02 Survey Content Brochure [PDF - 1.15 MB]
question_02 Frequently Asked Questions (FAQs)
stack_02 General Information about NHANES Documentation Files

Content source: CDC/National Center for Health Statistics