Season of birth in Alzheimer's disease.
Variation in quarter of birth was examined in patients with a clinical diagnosis of AD. There was a significant excess of first-quarter births among AD patients as compared with the expected birth rates derived from an age-matched census sample. This finding was due entirely to the significant excess of first-quarter births in AD patients without a family history of dementia. No seasonal variation was found in the birth dates of other clinical groups.
Philpot
M
M
Section of Psychogeriatrics, Guy's Hospital, London.
Rottenstein
M
M
Burns
A
A
Der
G
G
D000367:Age Factors; D000368:Aged; D000544:Alzheimer Disease / Q000453:epidemiology* / Q000209:etiology / Q000235:genetics; D004739:England / Q000453:epidemiology; D005260:Female; D006801:Humans; D008297:Male; D012307:Risk Factors; D012621:Seasons