Treatment-independent pregnancy among infertile couples.


We analyzed a two- to seven-year follow-up of 1145 infertile couples to determine the frequency of pregnancy occurring independently of treatment. Pregnancy occurred in 246 of 597 treated couples (41 per cent) and in 191 of 548 untreated couples (35 per cent). Thirty-one per cent of the pregnancies in treated couples occurred more than 3 months after the… (More)


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