Ontology highlight
ABSTRACT:
SUBMITTER: Saxena T
PROVIDER: S-EPMC2936672 | biostudies-literature | 2010 Sep
REPOSITORIES: biostudies-literature
Saxena Tanmai T Lee Eunjung E Henderson Katherine D KD Clarke Christina A CA West Dee D Marshall Sarah F SF Deapen Dennis D Bernstein Leslie L Ursin Giske G
Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology 20100810 9
<h4>Background</h4>Although it is well established that combined estrogen-progestin therapy (EPT) increases breast cancer risk, questions remain regarding the effect of different formulations of hormones, whether certain women are at particularly high risk, and whether risk varies by tumor subtype.<h4>Methods</h4>We investigated hormone therapy (HT) use in relation to breast cancer risk in the California Teachers Study cohort; after a mean follow-up of 9.8 years, 2,857 invasive breast cancers we ...[more]