Antibiotics and risk of breast cancer: up to 9 years of follow-up of 2.1 million women.

@article{Friedman2006AntibioticsAR,
  title={Antibiotics and risk of breast cancer: up to 9 years of follow-up of 2.1 million women.},
  author={Gary D. Friedman and Nina Oestreicher and James I-Chih Chan and Charles Patrick Quesenberry and Natalia V. Udaltsova and Laurel A. Habel},
  journal={Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology},
  year={2006},
  volume={15 11},
  pages={2102-6}
}
Antibiotic use has been associated with risk of breast cancer in previous reports. Using Cox proportional hazards analysis, we evaluated this association in 2,130,829 adult female subscribers of a health care program according to their receipt of prescriptions of antibiotics from outpatient pharmacies. Hormone use was taken into account. Altogether, 18,521 women developed breast cancer in up to 9.4 years of follow-up. Use of any antibiotic was associated with slightly increased risk [hazard… CONTINUE READING