Final answer:
OCPs are associated with a decreased risk of ovarian cancer. Studies have shown a 30-50% decrease in ovarian cancer risk with OCP use for at least 5 years.
Step-by-step explanation:
OCPs, or oral contraceptive pills, are associated with decreased risk of ovarian cancer. Studies have shown that women who use OCPs have a lower risk of developing ovarian cancer compared to those who have never used them. The protective effect of OCPs may be due to the suppression of ovulation and reduction in the number of menstrual cycles.
For example, a large cohort study published in the British Journal of Cancer found that OCP use for at least 5 years was associated with a 30-50% decrease in ovarian cancer risk. Another study published in the American Journal of Epidemiology analyzed data from over 45,000 women and reported a 37% reduction in the risk of ovarian cancer among current OCP users.
It is important to note that like any medication, OCPs do have potential risks and side effects. However, the evidence suggests that when it comes to ovarian cancer, the use of OCPs is associated with a decreased risk.