NACDA Podcast 18. Dr. Wassim Tarraf and the SOL-INCA Study
July 8, 2025
This 30 minute podcast features Dr. Wassim Tarraf:
- Professor of Gerontology at Wayne State University’s Institute of Gerontology and in the Department of Healthcare Sciences.
- As a gerontologist, methodologist, and applied statistician, the primary focus of his research program is on the aging US population, with a particular focus on cognitive aging.
- Dr. Tarraf has extensive experience researching and evaluating health outcomes, cognitive function and brain biomarkers, and health behavior, and investigating the biopsychosocial determinants of health and healthcare among older adults.
- Dr. Tarraf is an investigator on several NIA-funded ancillary studies of the Hispanic Community Health Study/Study of Latinos (HCHS/SOL), such as the SOL-Investigation of Neurocognitive Aging (SOL-INCA), examining sociocultural, cardiovascular, and sleep risk factors for cognitive and brain aging.
- Additionally, Dr. Tarraf co-leads the Michigan Center for African American Aging Research Analytics Core (AnC), and the Michigan Center for Contextual Factors in Alzheimer’s Disease Community Liaison and Recruitment Core.
- In his work, Dr. Tarraf also uses publicly available secondary data resources that are federally funded (e.g., the longitudinal health and retirement study) or federally administered (e.g., the Medical Expenditures Panel Study).
Resources mentioned in this podcast:
- Dr. Tarraf’s profile
- Hispanic Community Health Study/Study of Latinos (HCHS/SOL) – Investigation of Neurocognitive Aging (SOL-INCA)
- SOL-INCA data access
- Dr. Hector Gonzalez
- Michigan Center for Contextual Factors in Alzheimer’s Disease (MCCFAD)
- Michigan Center for Urban African American Aging Research (MCUAAR)
- Dr. Charles S. DeCarli
- Sleep duration and brain MRI measures: Results from the SOL-INCA MRI study
- Dr. Ariana Stickel and Dr. Ariana Stickel’s study on cardiovascular disease and brain aging
- Dr. Irving Vega
- Dr. Kevin Gonzalez’ sleep parameters and cognition study
- The discussion on workflow is informed by Dr. Scott Long’s book Workflow Analysis Using Stata; for a shorter treatment (pdf)
- Using an Open Science Workflow, by Dr. Tarraf – MCUAAAR Scientists presentation (pdf)
- Working with data using R (examples), the “workflowr” package in R, and a recent open-source book by Dr. Frank Harrell on R Workflow
- Health and Retirement Study
- Medical Expenditures Panel Survey
- Gerontological Society of America (GSA)
- Alzheimer’s Association (AAIC)