Type and timing of menopausal hormone therapy and breast cancer risk: individual participant meta-analysis of the worldwide epidemiological evidence. Collaborative Group on Hormonal Factors in Breast Cancer

30 August 2019 A meta-analysis covering the period January 1992 to January 2018 has been published in the Lancet by the Collaborative Group on Hormonal Factors in Breast Cancer. It has reported on the risk of breast cancer with MHT in relation to the type and timing of therapy. During prospective follow-up, 108 647 postmenopausal women…