Original Contribution Oral Contraceptives, Reproductive Factors, and Risk of Colorectal Cancer among Women in a Prospective Cohort Study
نویسندگان
چکیده
1 Division of Preventive Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA. 2 Department of Epidemiology, Harvard School of Public Health, Boston, MA. 3 Channing Laboratory, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA. 4 Department of Ambulatory Care and Prevention, Harvard Medical School, Boston, MA.
منابع مشابه
Reproductive history and risk of colorectal cancer in postmenopausal women.
BACKGROUND There are conflicting data regarding the role of sex hormones in colorectal cancer development. Whereas clinical trials data indicate that hormone therapy use reduces the risk of colorectal cancer, data from prospective cohort studies suggest that circulating estrogen levels are positively associated with colorectal cancer risk. A surrogate measure of lifetime estrogen exposure is re...
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Clinical and experimental findings suggest that female hormonal and reproductive factors could influence kidney cancer development. To evaluate this association, we conducted analyses in 2 large prospective cohorts (the National Institutes of Health-AARP Diet and Health Study (NIH-AARP), 1995-2006, and the Prostate, Lung, Colorectal and Ovarian Cancer Screening Trial (PLCO), 1993-2010). Cohort-...
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Background:The present study compared the differences between survivals of patients with colorectal cancer according to their ethnicity adjusted for other predictors of survival. Methods: In this prospective cohort study patients were followed up from definite diagnosis of colorectal cancer to death. Totally, 2431 person-year follow-ups were undertaken for 1127 colorectal cancer patients on...
متن کاملReproductive factors, oral contraceptive use, and risk of colorectal cancer.
Multiparity and use of oral contraceptives are hypothesized to reduce risk of colorectal cancer. Among 57,529 women, 31-90 years of age, who volunteered for a nationwide breast cancer screening program from 1973 to 1980, we observed 154 pathologically confirmed cases of colon cancer and 49 cases of rectal cancer in up to 10 years of follow-up (388,555 person-years). Parity was not associated wi...
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Background & Objectives: Breast cancer is a common malignancy in women in many parts of the world. The incidence of breast cancer in Iranian women is growing. Iranian patients are relatively younger than their western counterparts. We conducted a case-control study to determine roles of reproductive factors for breast cancer among women in Iran. Methods: A hospital based case-control study was ...
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