Hormone-related Risk Factors and Postmenopausal Breast Cancer Among Nulliparous Versus Parous Women: An Aggregated Study
نویسندگان
چکیده
منابع مشابه
Hormone-related risk factors and postmenopausal breast cancer among nulliparous versus parous women: An aggregated study.
Nulliparity is an established breast cancer risk factor, particularly when compared with parity at young ages. The authors aggregated data from 4 US prospective studies (1979-2006) including 32,641 nulliparous (1,612 breast cancers) and 204,270 parous (8,180 breast cancers) women to examine the hypothesis that nulliparity may increase susceptibility to established postmenopausal breast cancer r...
متن کاملHealth-Related Quality of Life and its related factors among women with breast cancer
Introduction: Breast cancer is an important issue in chronic disease studies. Breast cancer is the most common cancer among women.Life expectancy is long in patients with breast cancer and in result they suffer longer from cancer and its complications.Therefore it seems necessary to determine QOL and its related-factors in these patients. Objective: The purpose of the study isto determine Quali...
متن کاملPhysical activity and risk of breast cancer among postmenopausal women.
BACKGROUND Physical activity has many health benefits. Although greater activity has been related to lower postmenopausal breast cancer risk, important details remain unclear, including type, intensity, and timing of activity and whether the association varies by subgroups. METHODS Within the prospective Nurses' Health Study, we assessed the associations of specific and total activity, querie...
متن کاملBreastfeeding experience and breast cancer risk among postmenopausal women.
Results of studies of breastfeeding and postmenopausal breast cancer risk have been inconsistent, with many investigators concluding that breastfeeding does not influence risk. We examined whether breastfeeding reduces postmenopausal breast cancer risk as well as the details of this relationship, including possible modification in risk by the age that a woman first breastfed a child and the num...
متن کاملPlasma sex hormone concentrations and subsequent risk of breast cancer among women using postmenopausal hormones.
BACKGROUND Sex hormone concentrations are associated with breast cancer risk among women not using postmenopausal hormones (PMH); however, whether a relationship exists among PMH users is unknown. Therefore, we conducted a prospective, nested case-control study within the Nurses' Health Study (NHS) cohort to examine the association between plasma sex hormone concentrations and postmenopausal br...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: American Journal of Epidemiology
سال: 2011
ISSN: 0002-9262,1476-6256
DOI: 10.1093/aje/kwq404