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Table 1 Contraceptive failure rates by method

From: The effects of family planning and other factors on fertility, abortion, miscarriage, and stillbirths in the Spectrum model

Method

Failure rate

Source

Female sterilization

0.50%

Trussel

Male sterilization

0.15%

Trussel

Oral pill

6.90%

Cleland

IUD

1.60%

Cleland

Injections

2.90%

Cleland

Implants

0.05%

Trussel

Male condom

9.80%

Cleland

Lactational amenorrhea

24.0%

Trussel

Traditional methods

78.0%

Trussel

  1. Note: The failure rate is defined as the proportion of women using a method who will become pregnant in a year due to failure of the method