TABLE 1

Contraceptive Effectiveness: Rates of Unintended Pregnancies per 100 Women

First-Year Pregnancy Rate, %aKey
Consistent and Correct UseAs Commonly Used
Male methods
    Vasectomy0.100.150.0%–0.9%: very effective
    Male condom2151%–9%: effective
    Withdrawal42710%–25%: moderately effective
    No method858526%–32%: less effective
Common female hormonal methods
    Progestin-only injectable0.33
    Combined oral pills, patch, ring0.38
  • a Rates are largely from the United States.

  • Modified from: Trussell J. Contraceptive efficacy. In: Hatcher RA, Trussell J, Nelson AL, et al, eds. Contraceptive Technology. 19th Rev ed. New York, NY: Ardent Media; 2007:747–826.