Allemani

Bette J. Caan

Block

Elizabeth M. Poole

Erin K. Weltzien

Ewertz

Giovannucci

Hiatt

John P. Pierce

Jordan

Kwan

Marilyn L. Kwan

Michelle D. Holmes

Mickey

Ravdin

Ritenbaugh

Rock

Ruth E. Patterson

Sarah J. Nechuta

Seitz

Shirley W. Flatt

Wendy Y. Chen

Willett

Xiao Ou Shu

Abstract
               Background: Alcohol consumption is an established risk factor for incident breast cancer. However, its role in breast cancer prognosis remains unclear.
               Methods: We conducted an investigation of postdiagnosis alcohol consumption with recurrence and mortality among 9,329 breast cancer patients in the After Breast Cancer Pooling Project. Women were diagnosed from 1990 to 2006 with AJCC Stage I-III breast tumors from three prospective US cohorts. Alcohol intake was assessed at cohort entry (mean 2.1 years postdiagnosis) using a food frequency questionnaire. HR and 95% confidence intervals (CI) were estimated using delayed entry Cox proportional hazards models with adjustment for known prognostic factors.
               Results: After a mean follow-up of 10.3 years, 1,646 recurrences and 1,543 deaths were ascertained. 5,422 women (58%) were considered drinkers (≥0.36 g/day of alcohol, ≥0.25 drinks/week) with a median of 5.3 g/day. Overall, compared with nondrinking, regular alcohol intake (≥6.0 g/day) was not associated with risk of recurrence (HR for 6 to less than 12 g/day, 1.03; 95% CI, 0.86–1.24; HR for 12 to less than 24 g/day, 1.12; 95% CI, 0.93–1.34; HR for ≥24 g/day, 1.04; 95% CI, 0.84–1.31). However, risk varied significantly by menopausal status (P for interaction &amp;lt; 0.05). Postmenopausal women who regularly consumed alcohol (≥6.0 g/day) had increased risk of recurrence (HR, 1.19; 95% CI, 1.01–1.40). Alcohol intake was not associated with mortality.
               Conclusions: Regular alcohol consumption was not associated with breast cancer recurrence and total mortality overall, yet recurrence risk was only elevated in postmenopausal women.
               Impact: The association between alcohol intake and recurrence may depend on menopausal status at breast cancer diagnosis. Cancer Epidemiol Biomarkers Prev; 22(1); 32–41. ©2012 AACR.</jats:p

Crossref

Cancer Epidemiology Biomarkers & Prevention

Postdiagnosis Alcohol Consumption and Breast Cancer Prognosis in the After Breast Cancer Pooling Project

Postdiagnosis Alcohol Consumption and Breast Cancer Prognosis in the After Breast Cancer Pooling Project

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