Pre-Pandemic Data Release Plan for NHANES 2017-2020

The Pre-Pandemic Data Release Plan outlines the strategy for combining NHANES data from 2017-2018 and 2019-2020 to create a 4-year representative sample, along with the release timeline and priority datasets. The plan addresses the challenges in data collection and handling, ensuring the reliability and availability of essential health information. Additionally, it includes considerations for analysis and messaging related to the representation of time periods in the data.

• Data Release Plan
• NHANES
• Pre-Pandemic
• Health Data
• Data Collection

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1. 2017-20 Pre-Pandemic Data Data Release Plan

2. 2017-20 Pre-Pandemic Data Data Release Plan For components that were collected in both 2017-2018 and 2019-2020: Combine data from NHANES 2019-2020 with the NHANES 2017-18 data to form a 4-year nationally representative sample of NHANES 2017-2020. For new components in 2019-2020: Make data available as a convenience sample since the completed data collection in 2019-2020 did not yield a nationally representative sample. 1

3. Timeline First Wave Release for 2017-20 Pre-Pandemic Data Data Production Start Weight Evaluation Disclosure Risk Assessment Disclosure Review Board Approval Collaborator Review Public Release Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr 2020 2021 2

4. 2017-20 Pre-Pandemic Data Data Release Plan Priority datasets planned to be released in the first wave: Demographic Variables and Sample Weights Examination Data Body Measurements Blood Pressure - Oscillometric Measurements Oral Health - Dentition Oral Health - Recommendation of Care Lab Data Fasting Information Glycohemoglobin Plasma Fasting Glucose Cholesterol HDL Cholesterol Total Questionnaire Data Blood Pressure and Cholesterol Diabetes Oral Health 3

5. Questions for BSC Thoughts related to messaging about the file Stand-alone analysis of 2019-2020 data not possible (implications for trend analyses) Interpretation of estimates What language should be used about the time period represented (i.e., most of 2020 missing) 4