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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