title: Relative frequencies of dementia of the Alzheimer type and vascular dementia in Japanese nursing homes.
abstract: We have studied neuropathologically 200 aged nursing home residents (101 men and 99 women) autopsied between 1976 and 1985. Seventy-three of the 200 showed dementia during life, that is, 27% and 55% of the residents in nursing homes and special nursing homes, respectively. The relative frequencies of SDAT and VD in nursing homes as a whole were the same (34%). The relative frequencies of SDAT and VD in special nursing homes, where usually high concentrations of VD have been noted, were 21% and 52%, respectively. A comparison of the results of our special nursing homes (SDAT:VD = 1:2.5) and nursing homes as a whole (SDAT:VD = 1:1) with those of Barnes and Raskind (SDAT:VD = 2:1) and Rovner et al. (SDAT:VD = 3:1) showed that the frequencies of VD in Japanese nursing homes are considerably higher than those in their American counterparts.
authors.affiliation: Department of Psychiatry, Shimane Medical University, Izumo, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Ishino
authors.forename: H
authors.initials: H
authors.lastname: Seno
authors.forename: T
authors.initials: T
authors.lastname: Inagaki
authors.forename: C
authors.initials: C
authors.lastname: Naora
authors.forename: M
authors.initials: M
authors.lastname: Iijima
authors.forename: O
authors.initials: O
authors.lastname: Tanaka
authors.forename: Y
authors.initials: Y
authors.lastname: Yamori
authors.forename: R
authors.initials: R
authors.lastname: Horie
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000544:Alzheimer Disease / Q000453:epidemiology*; D003431:Cross-Cultural Comparison; D003430:Cross-Sectional Studies; D015140:Dementia, Vascular / Q000453:epidemiology*; D005260:Female; D006707:Homes for the Aged; D006801:Humans; D015994:Incidence; D007564:Japan / Q000453:epidemiology; D008297:Male; D009735:Nursing Homes