Overview

NHATS has two types of files available to researchers, which require approval before files can be accessed: sensitive files (including all NSOC files) and restricted files.

NSOC and other sensitive files require additional protection beyond what is implemented for public use data. Access to these data requires information about the researcher requesting the data and agreement to observe restrictions on cell sizes in publications and presentations from these data.

Restricted files contain data fields that pose additional risks of identifying participants. Access to these data are restricted to qualifying researchers who fulfill the additional requirements for restricted data access.

NSOC & Other Sensitive Files

NSOC & Other Sensitive Files

Sensitive data include all NSOC files, NHATS sensitive demographic files, and an NHATS dried blood spot file.

NSOC Files

NSOC III (2017)
Includes cross-sectional caregiver file and two tracker files indicating eligibility (one for caregivers and the other for NHATS sample persons), a longitudinal file and longitudinal tracker file for caregivers interviewed in 2015, and two time diary files (summary file and activity file).

NSOC II (2015)
Includes cross-sectional caregiver file and two tracker files indicating eligibility (one for caregivers and the other for NHATS sample persons).

NSOC I (2011)
Includes cross-sectional caregiver file and two tracker files indicating eligibility (one for caregivers and the other for NHATS sample persons).

NHATS Sensitive Demographic Files

Sample Person Files available for each round include month and year of birth, age in years, month and year of death, age in years at death (beginning in Round 2), types of cancer, race and primary race if more than one race reported for sample persons (at baseline interview), Hispanic subgroup for sample persons (at baseline interview), periods of service as a veteran (Rounds 1 and 5), month a marriage ended, year or age that the sample person came to live in the USA (at baseline interview), and month and year Social Security payments started (Rounds 1 and 5).

Other Person Files available each round include month and year of birth and age of spouse/partners, children, and household members. The Round 1 file also contains categorical age information for social network members.

NHATS Dried Blood Spot File

Contains the results of four assays (high-sensitivity C-reactive protein (hsCRP), glycosylated hemoglobin (HbA1c), Cytomegalovirus (CMV) and Interleukin (IL)-6) that were conducted in Round 7 to foster study of the biologic risk of disability progression. Variables related to eligibility and data collection also are included.

Application Process for NSOC & Other Sensitive Files

Application Process for NSOC & Other Sensitive Files

Complete & Sign

Complete & Sign

Submit Application

Submit Application

Receive Approval

Receive Approval

 

Complete and sign the required forms and documents in “Obtaining Sensitive Data from the National Health and Aging Trends Study ”.

 

Submit the application forms electronically to nhatsdata@westat.com using the subject heading: Sensitive Data Application.

 

Each application will be reviewed by NHATS. Once approval is granted, you will receive an approval notification email with instructions on how to access and download the sensitive data file(s) from the NHATS website.

Restricted Files

Restricted files include information made available by NHATS and NSOC, including geographic data and other linkages, and data made available by the Centers for Medicare and Medicaid Services (CMS).

Restricted NHATS Files

NHATS restricted data files will be made available through a partnership with the Michigan Center on the Demography of Aging.

NHATS Geographic Files

Geographic files for the Sample Person available each round include city, state, zip code, county, and census tract at each round. City and state where the SP was living at the age of 15 and the country of birth if the SP was born outside of the United States available for baseline round.

Geographic files for Other Persons available each round include city and state of residence for spouse/partners, children, and household members.

Dartmouth Health Atlas Hospital Referral Region (HRR) Files are available each round for the NHATS Sample Person’s residence.

Rural-Urban Continuum Codes (RUCC) Files are available each round for the NHATS Sample Person’s residence.

NHATS Restricted Tracker File

A restricted tracker file includes a variable indicating the day the NHATS interview was conducted.

NSOC Geographic Files

Geographic files for NSOC include city, state, zip code, county, and census tract at each round.

NHATS 1940 Census Linkage Files

COMING SOON

Restricted CMS Files

Claims and assessment files, as well as Part D Event Files and Drug Characteristics Files, are available. For details, see “Obtaining Restricted CMS Data for the National Health and Aging Trends Study”.

 

Application Process for Restricted NHATS Files

Application Process for Restricted NHATS Files

Complete & Sign

Complete & Sign

Submit Application

Submit Application

Receive Approval

Receive Approval

 

Submit the application forms electronically to nhats-restricted-data@umich.edu using the subject heading: Restricted Data Application.

 

Each application will be reviewed by NHATS. Following notice of approval, a countersigned DUA will be provided by NHATS and access will be granted to the Michigan Center on the Demography of Aging (MiCDA) Virtual Data Enclave (VDE).

Application Process for Restricted CMS Files

Application Process for Restricted CMS Data Files

Application Process for Restricted CMS Files

Complete & Sign

Complete & Sign

Submit Forms & Documents

Submit Forms & Documents

Submit Plans to IRB

Submit Plans to IRB

Submit IRB Approval

Submit IRB Approval

Request Crosswalk

Request Crosswalk

 

Complete and sign the required forms and documents in “Obtaining Restricted CMS Data for the National Health and Aging Trends Study

 

Submit the application forms electronically to nhatsdata@westat.com using the subject heading: Restricted CMS Data Application.

 

Each application will be reviewed by NHATS. Following notice of approval, submit the Data Protection Plan and Research Plan to the applicant’s Institutional Review Board/Human Subjects Review Committee.

 

Submit the Certification of Human Subjects Review form, which documents the Institutional Review Board’s/Human Subjects Review Committee’s review and approval, to nhatsdata@westat.com using the subject heading: Restricted Data Application IRB Approval.

 

After receiving a countersigned DUA and letter from NHATS, follow the procedures for receipt of CMS data. When the CMS data files are received, email nhatsdata@westat.com to request the crosswalk that allows linkage of the CMS data to NHATS files.