Postdiagnosis Changes in Cigarette Smoking and Survival Following Breast Cancer.

ABSTRACT: The purpose of this study was to examine whether at-diagnosis smoking and postdiagnosis changes in smoking within five years after breast cancer were associated with long-term all-cause and breast cancer-specific mortality. A population-based cohort of 1508 women diagnosed with first primary in situ or invasive breast cancer in 1996 to 1997 were interviewed shortly after diagnosis and again approximately five years later to assess smoking history. Participants were followed for vital status through December 31, 2014. After 18+ years of follow-up, 597 deaths were identified, 237 of which were breast cancer related. Multivariable Cox regression was used to estimate hazard ratios (HRs) and 95% confidence intervals (CIs). Compared with never smokers, risk of all-cause mortality was elevated am

SUBMITTER: Parada H 

PROVIDER: S-EPMC5875926 | biostudies-literature | 2017 Sep

REPOSITORIES: biostudies-literature