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Association between oral contraceptive use, breast cancer may vary by histology.
2003 NOV 6 - (NewsRx.com & NewsRx.net) -- Association between oral contraceptive use, risk of breast cancer may vary by histologic type.
According to recent research published in the International Journal of Cancer, researchers "examined the association between oral contraceptive use and risk of specific breast cancer histopathologies in a large, multicenter, population-based, case-control study.
"Women younger than age 75 with a new diagnosis of invasive breast cancer were identified from four statewide tumor registries. We compared women with lobular (n=493) and ductal carcinoma (n=5,510) to randomly selected controls (n=9,311)," wrote L.M. Newcomer and colleagues, Fred Hutchinson Cancer Research Center, Department of Epidemiology.
"Odds ratios (OR) and 95% confidence intervals (CI) for each histologic type were estimated using polytomous logistic regression, adjusted for other breast cancer risk factors," the researchers wrote.
"Current oral contraceptive use was associated with increased risk of lobular carcinoma (OR =2.6, 95% CI =1.0-7.1) and there was a ...
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