You are here: Home / Contracts / New Data Releases

New Data Releases

To apply for the any of these restricted-use data files:

  • New users will need to apply for restricted-use data. Please download and complete the restricted-use data contract using the CPC Data Portal.
  • Current Add Health users can log in to their CPC Data Portal application to request additional data. If you do not have a CPC Data Portal application yet, please email  for instructions.

For more information, please visit the Data Portal's Frequently Asked Questions page. 


Add Health Parent Study (2015-2017) Family Health History, Disposition, and National Death Index Data

(Released: January 24, 2019)

The Add Health Parent Study (2015-2017) Family Health History files contain data from the Wave I parent (n=2,247) and spouse/partner (n=1,118) who returned the Add Health Parent Study family health history leave-behind forms. The Add Health Parent Study (2015-2017) Disposition File (n=20,745) contains the final disposition codes for Wave I parents selected for the interview. The Add Health Parent Study (2015-2017) National Death Index File (n=226) contains the underlying cause of death and days alive after the Wave I interview for Wave I parents selected for the  interview who are coded as deceased in the disposition file.


Wave IV: Polygenic Scores - SSGAC

(Released: November 30, 2018)

Polygenic scores (PGS) constructed by the Social Science Genetic Association Consortium (SSGAC) are available for Add Health respondents who provided archival saliva samples for genetic testing at Wave IV. This data file (n=5,690) contains educational attainment, cognitive performance, depression, neuroticism, and subjective well-being scores based on standard GWAS summary statistics and multilevel analysis (2 scores for each construct).  Additional multivariate analysis scores for highest level math taken and math ability are also included.


dbGaP Linkage File

(Released: October 2, 2018)

The following items are required before this request can be approved. Please submit, as necessary, the documents listed below using the CPC Data Portal..

  1. An approved Add Health Restricted-Use Data Contract.
  2. The Add Health Linkage File Agreement.
  3. An approved dbGaP Add Health Data Use Certification Agreement.
  4. The NIH-approved dbGaP NIH Data Access Request.


Wave V, Sample 1*

(Released: December 1, 2017)

Data from Wave V Sample 1 respondents who completed the survey between March 2016 and March 2017. This file is a partial release of data from 3,872 of the Wave V Sample 1 respondents (includes weights).

*Wave V, Sample 1 data is disseminated via Restricted-Use contracts only.  There will be no Public-Use data release for Wave V, Sample 1.