Breast cancer and estrogen replacement therapy.

Published

Journal Article

Concern over the possible effect of estrogen replacement therapy on the subsequent development of breast cancer prompted us to compare 199 postmenopausal breast cancer patients with 451 hospital control subjects and 852 community control subjects on their prior use of estrogens. Estrogen use did not increase the breast cancer risk for women with a surgical menopause. Among women with a natural menopause, estrogens administered by all routes were associated with breast cancer risks of 1.7 of 1.8. There was no coherent pattern of changing risks with varying durations of use, different daily dosages, years since first use of estrogen, or years since most recent use. When women who usually received estrogen by injection were excluded, the risk estimates for oral estrogens were 1.3 (case subjects compared to community control subjects) and 1.2 (case subjects compared to hospital control subjects). These increases were not statistically significant. Use of injectable estrogens produced a fourfold increase in breast cancer risk among naturally postmenopausal women.

Full Text

Duke Authors

Cited Authors

  • Hulka, BS; Chambless, LE; Deubner, DC; Wilkinson, WE

Published Date

  • July 15, 1982

Published In

Volume / Issue

  • 143 / 6

Start / End Page

  • 638 - 644

PubMed ID

  • 7091236

Pubmed Central ID

  • 7091236

International Standard Serial Number (ISSN)

  • 0002-9378

Digital Object Identifier (DOI)

  • 10.1016/0002-9378(82)90108-9

Language

  • eng

Conference Location

  • United States