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February 5, 1968


JAMA. 1968;203(6):21-34. doi:10.1001/jama.1968.03140060073041

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Intrauterine Devices Found Effective, But Carry 'Small' Risk  Intrauterine devices are effective in preventing pregnancy, but their insertion carries a definite—"albeit small"—risk of infection and uterine perforation.This is part of the report to the Food and Drug Administration from its Advisory Committee on Obstetrics and Gynecology, which estimates 6 million to 8 million women worldwide probably accepted the intrauterine device in recent years.Accurate figures on use of the intrauterine contraceptive device in the United States are not available, but it was noted:"By January 1968, the total number distributed was approximately 3 million."

Pregnancy Rates Vary  In this country, the report said, the most successful IUDs "are associated with a pregnancy rate of from 1.5 to 3.0 per 100 women during the first year of use. These rates tend to decline during successive years. In general, the rates vary inversely with size of the device and age