Dietary protein sources in early adulthood and breast cancer incidence: prospective cohort study.

ABSTRACT:

Objective

To investigate the association between dietary protein sources in early adulthood and risk of breast cancer.

Design

Prospective cohort study.

Setting

Health professionals in the United States.

Participants

88,803 premenopausal women from the Nurses' Health Study II who completed a questionnaire on diet in 1991.

Main outcome measure

Incident cases of invasive breast carcinoma, identified through self report and confirmed by pathology report.

Results

We documented 2830 cases of breast cancer during 20 years of follow-up. Higher intake of total red meat was associated with an increased risk of breast cancer overall (relative risk 1.22, 95% confidence interval 1.06 to 1.40; P(trend) = 0.01, for highest fifth v lowest fifth of intake). Howeve

SUBMITTER: Farvid MS 

PROVIDER: S-EPMC4051890 | biostudies-literature | 2014 Jun

REPOSITORIES: biostudies-literature