The Indianapolis Ibadan Dementia Project

Principal Investigator

Hugh C Hendrie
7960 Conarroe Rd Indianapolis In 46278, USA.

Data Contact

Sujuan Gao


Setting: Ibadan, Nigeria and Indianapolis, USA
Start Date: 1992-3
End Date: 1998 Ibadan, 2009 Indianapolis
Participants: 2487 community-dwelling Yoruba residents of Ibadan, and 2212 community-dwelling African American residents of Indianapolis, all aged 65 years or older.
Indianapolis enrichment cohort: 1893 community-dwelling African American residents of Indianapolis aged 70 years or older added in 2001.
Assessment Schedule: Ibadan and original Indianapolis cohort: Baseline, 2- and 5-year follow-ups.
Indianapolis original and enrichment cohorts: 2001 (baseline for the enrichment cohort), with follow-ups every 2-3 years at 2004, 2007, 2009.
Measures: (1) Neuropsychological battery; (2) Physical and neurological examination; (3) Blood for laboratory testing; (4) Head CT scans in subgroup; (5) Dementia diagnoses

Further Information

  • Hendrie HC, Ogunniyi A, Hall KS, et al. Incidence of dementia and Alzheimer disease in 2 communities: Yoruba residing in Ibadan, Nigeria, and African Americans residing in Indianapolis, Indiana. JAMA. 2001 Feb 14;285(6):739-47.
  • Hendrie HC, Hake A, Lane K, et al. Statin Use, Incident Dementia and Alzheimer Disease in Elderly African Americans. Ethn Dis. 2015 Aug 7;25(3):345-54.