Antibiotic use in relation to the risk of breast cancer

CM Velicer, SR Heckbert, JW Lampe, JD Potter… - Jama, 2004 - jamanetwork.com
ContextUse of antibiotics may be associated with risk of breast cancer through effects on
immune function, inflammation, and metabolism of estrogen and phytochemicals; however,
clinical data on the association between antibiotic use and risk of breast cancer are sparse.
ObjectiveTo examine the association between use of antibiotics and risk of breast cancer.
Design, Setting, and ParticipantsCase-control study among 2266 women older than 19
years with primary, invasive breast cancer (cases) enrolled in a large, nonprofit health plan …