User Guides

NHATS User Guides

The NHATS User Guide provides comprehensive descriptions of the NHATS conceptual framework, content, data file structure, created measures, and other relevant topics. Separate guides on how to account for sample design in NHATS analyses, vision and hearing assessments, Cogstate cognitive activities, and accelerometry data also are provided.

Dried Blood Spot (DBS) Biomarkers and Genetics

The Dried Blood Spot (DBS) User Guide provides details on the Round 7 collection and assays conducted to foster study of the biologic risk of disability progression. The Quality Control and Imputation Report for Genotypic Data outlines the genetic sample collection, quality control processing, and imputation decisions made by the NHATS team to produce genotyped and imputed data on the NHATS dried blood spot samples.

Technical Papers

Sample Design, Weighting, and Income Imputation

Technical papers describing the NHATS sample design, round-specific survey weights, and income imputation procedures are provided.

ROUND
Rds
Sample Design Weighting Income Imputation
12
PDF
PDF
Accelerometry
PDF
PDF
11
PDF
Accelerometry
PDF
PDF
10
PDF
COVID-19
PDF
9
PDF
PDF
8
PDF
7
PDF
PDF
6
PDF
5
PDF
PDF
PDF
4
PDF
3
PDF
PDF
2
PDF
1
PDF
PDF
PDF

Instruments

Data collection instruments are provided below for each round. View a summary of content across all rounds.

ROUND
Rds
Sample Person Interview
(including Facility Questionnaire)
Last Month of Life Interview
12
PDF
PDF
11
PDF
PDF
10
PDF
COVID-19
PDF
PDF
9
PDF
PDF
8
PDF
PDF
7
PDF
PDF
6
PDF
PDF
5
PDF
PDF
4
PDF
PDF
3
PDF
PDF
2
PDF
PDF
1
PDF

Instrument-Variable Crosswalks

The crosswalks map questionnaire items found on the instruments to variable names and labels.

ROUND
Rds
Crosswalk Between
Instruments & Variables
Crosswalk of Changes Between
Beta & Final Release
12
11
10
COVID-19
PDF
COVID-19
EXCEL
COVID-19
PDF
COVID-19
EXCEL
9
8
7
DBS
PDF
DBS
EXCEL
6
5
4
3
2
1