Systematic review of dementia prevalence and incidence in United States race/ethnic populations.
To identify incidence and prevalence of dementia in racial and ethnic populations in the United States.



A systematic review of literature.



A total of 1215 studies were reviewed; 114 were included. Dementia prevalence rates reported for age 65+ years from a low of 6.3% in Japanese Americans, 12.9% in Caribbean Hispanic Americans, 12.2% in Guamanian Chamorro and ranged widely in African Americans from 7.2% to 20.9%. Dementia annual incidence for African American (mean = 2.6%; SD = 1%; range, 1.4%-5.5%) and Caribbean Hispanic populations were significantly higher (mean, 3.6%; SD, 1.2%; range, 2.3%-5.3%) than Mexican American and Japanese Americans and non-Latino white populations (0.8%-2.7%), P < .001.



Data are needed for American Indian, most Asian, and Pacific Islander populations. Disaggregation of large race/ethnic classifications is warranted due to within-population heterogeneity in incidence and prevalence. African American and Caribbean Hispanic studies showed higher incidence of dementia. A nationwide approach is needed to identify communities at high risk and to tailor culturally appropriate services accordingly.
Department of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, CA, USA. Electronic address: kala.mehta@ucsf.edu.
Kala M
KM
Mehta
Stanford Geriatric Education Center, Stanford University School of Medicine, Stanford, CA, USA. Electronic address: gwenyeo@stanford.edu.
Gwen W
GW
Yeo
D000368:Aged; D000369:Aged, 80 and over; D003704:Dementia / Q000453:epidemiology* / Q000208:ethnology*; D005006:Ethnicity; D005260:Female; D014943:Global Health; D006801:Humans; D015994:Incidence; D008297:Male; D015995:Prevalence; D014481:United States / Q000453:epidemiology
Alzheimer's Disease; Dementia; Ethnicity; Incidence; Prevalence; Race