Hormonal Contraceptives Linked to Increased Breast Cancer Risk: Study
A new study published in PLOS Medicine by researchers at Oxford Population Health’s Cancer Epidemiology Unit found that use of progestogen-only hormonal contraceptives is associated with a 20-30% higher risk of breast cancer. The researchers analyzed data from 9,498 women who developed invasive breast cancer between ages 20 to 49 and 18,171 women without breast cancer who acted as controls. The data were collected by the Clinical Practice Research Datalink (CPRD).