Breast cancer risk and hormone receptor status in older women by parity, age of first birth, and breastfeeding: a case-control study.

Publication Type:

Journal Article

Source:

Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology, Volume 17, Issue 7, p.1723-30 (2008)

Keywords:

2008, Adult, Age Factors, Breast Feeding, Breast Neoplasms, Center-Authored Paper, Epidemiology Core Facility, Female, Follow-Up Studies, Humans, Middle Aged, Morbidity, Parity, PREGNANCY, Prognosis, Public Health Sciences Division, Receptors, Estrogen, Receptors, Progesterone, Retrospective Studies, Risk Factors, Shared Resources, Time Factors, Tumor Markers, Biological, United States, Young Adult

Abstract:

Early age at first birth and multiparity reduce the risk of estrogen receptor-progesterone receptor (ERPR)-positive breast cancer, whereas breastfeeding reduces the risk of both ERPR-positive and ERPR-negative cancers.