作者: Zhiping Huang , Susan E. Hankinson , Graham A. Colditz , Meir J. Stampfer , David J. Hunter
DOI: 10.1001/JAMA.1997.03550170037029
关键词: Risk factor 、 Breast cancer 、 Weight change 、 Body mass index 、 Obstetrics 、 Cohort 、 Gynecology 、 Prospective cohort study 、 Menopause 、 Medicine 、 Cohort study
摘要: Context. —Breast cancer is a major cause of mortality among women. It important to identify modifiable risk factors for this disease. Objective. —To examine body mass index (BMI) at the age 18 years and midlife adult weight change in relation breast incidence mortality. Design. —Cohort study. Setting. —A cohort 95256 US female nurses aged 30 55 who were followed up 16 years. Main Outcome Meausure. —Incident fatal cancer. Results. —During 1 203498 person-years, 2517 incident cancers (60% postmenopausal) documented. Higher current BMI was associated with lower before menopause minimally after menopause. However, stronger positive relationship seen postmenopausal women never used hormone replacement (relative risk=1.59 >31 kg/m2vs ≤20 kg/m2; 95% confidence interval, 1.09-2.32;Pfor trend Conclusions. —Avoiding gain may contribute importantly prevention menopause, particularly do not use hormones.