Oral Contraceptives' Link to Breast Cancer
Oral contraceptive (OC) use has been linked to increased risk of breast cancer, largely on the basis of studies conducted before 1990. In the Case-Control Surveillance Study, a US hospital-based case-control study of medication use and cancer, the authors assessed the relation of OC use to breast cancer risk among 907 case women with incident invasive breast cancer ... These results suggest that OC use is associated with an increased risk of breast cancer diagnosed in recent years.