Vitamin supplement use during breast cancer treatment and survival: a prospective cohort study.

ABSTRACT:

Background

Antioxidants may protect normal cells from the oxidative damage that occurs during radiotherapy and certain chemotherapy regimens; however, the same mechanism could protect tumor cells and potentially reduce effectiveness of cancer treatments. We evaluated the association of vitamin supplement use in the first 6 months after breast cancer diagnosis and during cancer treatment with total mortality and recurrence.

Methods

We conducted a population-based prospective cohort study of 4,877 women aged 20 to 75 years diagnosed with invasive breast cancer in Shanghai, China, between March 2002 and April 2006. Women were interviewed approximately 6 months after diagnosis and followed up by in-person interviews and record linkage with the vital statistics registry.

Resul

SUBMITTER: Nechuta S 

PROVIDER: S-EPMC3057050 | biostudies-literature | 2011 Feb

REPOSITORIES: biostudies-literature