Plasma sex hormone concentrations and subsequent risk of breast cancer among women using postmenopausal hormones.

@article{Tworoger2005PlasmaSH,
  title={Plasma sex hormone concentrations and subsequent risk of breast cancer among women using postmenopausal hormones.},
  author={Shelley S Tworoger and Stacey A. Missmer and Robert L. Barbieri and Walter C Willett and Graham A. Colditz and Susan E. Hankinson},
  journal={Journal of the National Cancer Institute},
  year={2005},
  volume={97 8},
  pages={595-602}
}
BACKGROUND Sex hormone concentrations are associated with breast cancer risk among women not using postmenopausal hormones (PMH); however, whether a relationship exists among PMH users is unknown. Therefore, we conducted a prospective, nested case-control study within the Nurses' Health Study (NHS) cohort to examine the association between plasma sex hormone concentrations and postmenopausal breast cancer among women using PMH at blood collection. METHODS Blood samples were collected from… CONTINUE READING