Relation of time since last birth and parity to survival of young women with breast cancer

Epidemiology. 1998 Nov;9(6):669-71.


We investigated whether survival was related to recent childbirth or parity in a cohort of 540 women diagnosed with breast cancer before the age of 45 years who were followed for up to 14 years. Women who had given birth within 2 years before their diagnosis of breast cancer were at increased risk of dying, compared with nulliparous women, with an adjusted relative risk of 3.1 (95% confidence interval = 1.8-5.4). There was a moderate association of parity with mortality, with an adjusted relative risk of 1.8 (95% confidence interval = 1.2-2.9) for women with three or more births, compared with nulliparous women.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Adult
  • Breast Neoplasms / mortality*
  • Cohort Studies
  • Female
  • Humans
  • Parity*
  • Pregnancy*
  • Prognosis
  • Risk Factors
  • Survival Analysis
  • Time Factors