The relation of oral contraceptive use to the risk of breast cancer was evaluated in a case-control study of women under the age of 70 years, conducted in Toronto, Canada, from 1982 through 1986.
A total of 607 breast cancer cases identified in a cancer hospital were compared with 1,214 controls matched to the cases on neighborhood and decade of age.
Information on oral contraceptive use and risk factors for breast cancer was collected in home interviews.
Conditional logistic regression was used to control multiple confounding factors.
For women aged 40-69 years (527 cases, 1,054 controls), the results suggest that oral contraceptive use does not increase the risk of breast cancer.
Mots-clés Pascal : Tumeur maligne, Epidémiologie, Contraceptif, Glande mammaire, Glande mammaire pathologie, Femme, Homme, Facteur risque, Voie orale, Ontario, Canada, Amérique du Nord, Amérique, Etude cas témoin
Mots-clés Pascal anglais : Malignant tumor, Epidemiology, Contraceptive, Mammary gland, Mammary gland diseases, Woman, Human, Risk factor, Oral administration, Ontario, Canada, North America, America, Case control study
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 93-0284056
Code Inist : 002B20E02. Création : 199406.