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For Researchers

Study Overview (pdf)
See article describing the VETSA projects.
  • Accessing VETSA Data

    Deidentified VETSA Wave 1, 2 and 3 data are now accessible through the VETSA PIs and will soon be available via the ICPSR website. VETSA 4 data will be available in late 2024.
    • The Basic Process:
      There are 4 simple steps for qualified researchers interested in using VETSA data:
      1. Take a look at the list showing many of the VETSA measures.
      2. Fill out and submit a Data Request Form; we will send you a complete data dictionary.
      3. If the request is approved, you will be asked to fill out and submit a Data Use Agreement (DUA).
      4. Upon receipt of the signed DUA, we will provide the relevant data.
    • Forms:
  • VETSA Funding

    Acknowledgments and thanks to the National Institute of Aging for funding the VETSA projects.
    • The VETSA Longitudinal Twin Study of Cognition and Aging (ongoing)
      • PIs: William S. Kremen, Ph.D. and Michael J. Lyons, Ph.D.
      • R01s AG018384, AG018386, and AG050595
    • The VETSA Longitudinal MRI Twin Study of Aging (ongoing)
      • PI: William S. Kremen, Ph.D.
      • R01 AG022381
    • The VETSA Longitudinal Twin Study of Cortisol and Aging (completed)
      • PI: William S. Kremen, Ph.D.
      • R01 AG022982
  • Vietnam Era Twin (VET) Registry

    The VET Registry oversees a large register of veteran twins. All VETSA Participants are part of this longitudinal Registry.