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. Author manuscript; available in PMC: 2017 Nov 1.
Published in final edited form as: Drug Saf. 2016 Nov;39(11):1053–1072. doi: 10.1007/s40264-016-0452-7

Table 3.

Contraceptive failure rates by method across 43 countries at 12, 24, and 36 months. Adapted from Polis CB, et al. [28], Supplemental Table 8. Data are presented as pooled rate per 100 episodes of typical use (95% confidence intervals).

Contraceptive method 12 months 24 months 36 months
Implant 0.6

(0.3, 0.9)		 0.8

(0.4, 1.1)		 1.1

(0.5, 1.6)
Intrauterine Device 1.5

(1.2, 1.8)		 3.0

(2.5, 3.4)		 3.9

(3.4, 4.4)
Injectable 2.3

(2.0, 2.5)		 4.1

(3.8, 4.4)		 6.0

(5.5, 6.5)
Oral Pill 5.7

(5.4, 6.0)		 11.0

(10.5, 11.5)		 15.1

(14.4, 15.7)
Male Condom 6.8

(6.3, 7.3)		 12.6

(11.8, 13.4)		 17.6

(16.4, 18.8)
Withdrawal 14.9

(14.1, 15.6)		 27.5

(26.5, 28.5)		 35.7

(34.5, 37.0)