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Reproductive history and risk of breast cancer. A case‐control study in an unselected swedish populations
Author(s) -
Adami HansOlov,
Rimsten Åke,
Stenkvist Björn,
Vegelius Jan
Publication year - 1978
Publication title -
cancer
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.052
H-Index - 304
eISSN - 1097-0142
pISSN - 0008-543X
DOI - 10.1002/1097-0142(197802)41:2<747::aid-cncr2820410248>3.0.co;2-0
Subject(s) - medicine , menarche , breast cancer , demography , population , menopause , case control study , gynecology , obstetrics , cancer , environmental health , sociology
Variables in reproductive histories were studied in 179 consecutively detected, unselected breast cancer patients and age‐matched controls selected from a computerized population register. The comparison between patients and controls showed no significant difference in age at menarche, age at first birth, age at menopause or number of children. A subdivision into pre‐ and postmenopausal women yielded no further information. These results are at variance with most earlier reports, possibly because the controls here were selected from the whole female population instead of hospitalized patients. Our data do not support the view that it is possible to define groups at high risk for breast cancer on the basis of reproductive histories.