For women with live birth, time to event was defined as number of months between randomisation and estimated date of last menstrual period; women without live birth were censored at end of their follow-up<p><b>Copyright information:</b></p><p>Taken from "Clomifene citrate or unstimulated intrauterine insemination compared with expectant management for unexplained infertility: pragmatic randomised controlled trial "</p><p></p><p>BMJ : British Medical Journal 2008;337():-.</p><p>Published online 07 Aug 2008</p><p>PMCID:PMC2505091.</p><p></p