Schizophrenia and the risk for breast cancer.
The authors investigated the risk for breast cancer in schizophrenia in a cohort of 1336313 Danish women born after 1935, including information on reproductive factors. In all, 7541 had been hospitalized for schizophrenia in 1970-1997 and the overall relative risk for breast cancer adjusted for age, period, age at first birth and number of births was not increased (RR, 0.91; 95% confidence interval, 0.71-1.12). Studies not taking parity into account may overestimate the risk for breast cancer in schizophrenic women.
Oksbjerg Dalton
Susanne
S
Danish Cancer Society, Institute of Cancer Epidemiology, Strandboulevarden 49, DK-2100, Copenhagen, Denmark.
Munk Laursen
Thomas
T
Mellemkjaer
Lene
L
Johansen
Christoffer
C
Mortensen
Preben B
PB
D000328:Adult; D000367:Age Factors; D000368:Aged; D001943:Breast Neoplasms / Q000453:epidemiology*; D015331:Cohort Studies; D015897:Comorbidity; D003718:Denmark / Q000453:epidemiology; D005260:Female; D006801:Humans; D008875:Middle Aged; D010298:Parity; D012042:Registries; D012306:Risk; D012559:Schizophrenia / Q000453:epidemiology*