Analysis on Pregnancy rate of Intra-Uterine Inseminations in Unexplained Infertility in Korea

Purpose:
The purpose of this study is to identify factors influencing pregnancy rate among unexplained infertile couples who received treatment of ART, Intra-Uterine Inseminations.
Method:
Medical records of 24,201 cases of unexplained infertility among total 31,684 intrauterine insemination treatment cases, which were benefited by 'National Medical-aid Program for ART in 2011' were used for this analysis.
Result:
Age(OR=0.948), frequency of IUI(OR=0.862), and medical cost(OR=1.022) were significant factors on pregnancy rates in logistic regression analysis.
Conclusion:
- Factors, such as infertile woman's age, frequency of IUI, medical cost were positively influenced pregnancy rate. However, age of spouse was not significant variable.
- Prioritize the infertile couples that one year even with regular and unprotected sexual intercourse for treatment.
- The results showed that about 70% of Korean infertile couples were unexplained infertility. The higher proportion of unexplained infertility rather than that of clinical standard. Therefore, we should assess for reasons through the future studies. In addition, affective or emotional factors influencing unexplained infertility need to be researched further.