Effect of factors related to the recipient and insemination characteristics on the success of artificial insemination with frozen semen.
It is of clinical importance to determine the factors which influence the outcome of insemination with frozen human semen. The number of inseminations per cycle and the season of the year had significant effects on the outcome of the insemination in all the recipients in the AID programme and in those who became pregnant within six cycles of treatment. The chance of pregnancy was greater with increasing number of inseminations per cycle. During winter the proportion of insemination cycles resulting in pregnancy was lower than in the other three seasons. The proportion of insemination cycles resulting in pregnancy was higher when the maximum cervical scores of the cycle were high (greater than 10 in a scale of 12) when compared with lower scores in all the recipients but not in those who became pregnant within six cycles. Duration of infertility and previous fertility of the recipients had a significant effect on the outcome of insemination in all the recipients but not in those who became pregnant within six cycles. Age of the recipient had a positive effect on the abortion rate.
D000022:Abortion, Spontaneous / Q000453:epidemiology; D000367:Age Factors; D005260:Female; D006801:Humans; D007315:Insemination, Artificial / Q000379:methods; D007316:Insemination, Artificial, Heterologous / Q000379:methods; D008423:Maternal Age; D010298:Parity; D011247:Pregnancy; D012621:Seasons; D012662:Semen Preservation; D013997:Time Factors