Title of article :
Oral contraceptives and risk of familial breast cancer
Author/Authors :
Heimdal، نويسنده , , Ketil and Skovlund، نويسنده , , Eva and Mّller، نويسنده , , Pهl، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2002
Pages :
5
From page :
23
To page :
27
Abstract :
The risk of breast cancer of oral contraceptive (OC) use in 1423 women from families with hereditary/familial breast cancer recruited through a cancer family clinic was analyzed in a matched case-control study. Ninety-eight women tested positive for a BRCA1 mutation. Hazard ratio for ever use of OCs adjusted for other risk factors was 0.90 (95% confidence interval (CI) 0.68–1.18) in the total data set and 2.00 (0.36–10.9) in BRCA1 mutation carriers. We did not find evidence for interaction between BRCA1 mutation status and OC use on breast cancer risk. Recent users had a statistically significant increase in risk with hazard ratios of 1.99, 2.05, and 1.69 for up to 5, 10, and 15 years since last OC use, while users with more than 15 years since last use had a reduction of risk to 0.69 compared to never users. clude that the effects of OC use on breast cancer risk in familial breast cancer may be similar to the effects in the general population. For BRCA1 mutation carriers, the point estimate is a doubling of risk, but CI is wide and no conclusion may be drawn from this study alone.
Keywords :
breast cancer , Familial breast cancer , ORAL CONTRACEPTIVES , BRCA1
Journal title :
Cancer Detection and Prevention
Serial Year :
2002
Journal title :
Cancer Detection and Prevention
Record number :
1833573
Link To Document :
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