The Influence of Women Age and Successfulness of
Intrauterine Insemination (IUI) Cycles
Patsama Vichinsartvichai MD*, Supatchaya Siriphadung MD*,
Khanitta Traipak MN*, Pornprom Promrungrueng BSc*,
Chirawattana Manolertthewan MSc*, Sarwinee Ratchanon MD*
Affiliation :
* Infertility Unit, Department of Obstetrics and Gynecology, Faculty of Medicine Vajira Hospital,
Navamindradhiraj University, Bangkok, Thailand
Objective : To evaluate the association between success and the benefit of repeated intrauterine insemination (IUI) cycles
among women of different age groups.
Material and Method: A retrospective analysis of 466 IUI cycles from 221 patients treated in a fertility center of a university
hospital between 2005 and 2013. The female age was stratified as younger than 35 years, 35 to 40 years, and older than
40 years old. The outcomes were the biochemical pregnancy rate, clinical pregnancy rate, live birth rate, and miscarriage
rate. Kaplan-Meier analysis of the suitability cycle in each age group was also performed.
Results : The average age of patients was 35.24.6 years (range 21 to 49 years). The overall biochemical pregnancy rate
was 18.6%. The biochemical pregnancy rate significantly decreased with advancing female age groups (27.6%, 12.8%, and
7.1% in female age group younger than 35 years, 35 to 40 years, and older than 40 years respectively, p = 0.008). The other
pregnancy outcomes were not different among female age groups. In all age groups, the increment of the cumulative
biochemical pregnancy rate was observed up to four cycles.
Conclusion : The biochemical pregnancy rate of IUI cycle decreased with advancing female age; however, clinical pregnancy
rate, live birth rate, and miscarriage rate were not different among female age groups. We recommend performing up to
four insemination cycles before proceeding to IVF/ICSI cycle.
Keywords : Artificial insemination, IUI, Age groups, Pregnancy rate
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