Da brystcancer er sjælden hos kvinder under 40 år, er det forhøjede antal af brystcancer- diagnoser hos aktuelle og nylige brugere af COC lille i forhold til den generelle risiko for brystcancer.
Because breast cancer is rare in women under 40 years of age, the excess number of breast cancer diagnoses in current and recent COC users is small in relation to the overall risk of breast cancer.