Contraceptive efficacy studies

Contraceptive efficacy studies evaluate how well different birth control methods prevent pregnancy. They involve tracking a large group of users over time, recording how many pregnancies occur among those using each method. The main measure is the "failure rate," often expressed as the number of pregnancies per 100 women over one year of use. These studies help determine the reliability of contraceptives, guiding healthcare providers and users in choosing effective options. They are conducted under controlled conditions and real-world settings to provide accurate assessments of a contraceptive's performance.