en Obstetrics and Gynecology Care Obstetrics and Gynecology Care توصيفی و نظرسنجی Descriptive Study <span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Aptos,sans-serif"><b><span style="font-size:10.0pt"><span style="font-family:&quot;Cambria&quot;,serif"><span style="color:#44546a">Aims</span></span></span></b><span style="font-size:10.0pt"><span style="font-family:&quot;Cambria&quot;,serif">: In the field of infertility treatments, intrauterine insemination (IUI), with or without ovulation stimulation, is considered the first line of intervention. This study aimed to assess the relationship between various factors and the rates of biochemical and clinical pregnancy following IUI treatment over a five-year period.</span></span><span dir="RTL" lang="AR-SA" style="font-size:10.0pt"><span style="font-family:&quot;Arial&quot;,sans-serif"></span></span></span></span></span><br> <span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Aptos,sans-serif"><b><span style="font-size:10.0pt"><span style="font-family:&quot;Cambria&quot;,serif"><span style="color:#44546a">Instrument & Methods</span></span></span></b><span style="font-size:10.0pt"><span style="font-family:&quot;Cambria&quot;,serif">: This cross-sectional study was conducted at Kashan, Iran, 2023. The medical records of patients diagnosed with infertility and treated with IUI at the infertility center in Kashan were reviewed. The primary outcomes were biochemical and clinical pregnancy rates, along with associated factors. Data were analyzed using the Chi-square test and independent t-tests, with statistical significance set at p&le;0.05.</span></span></span></span></span><br> <span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Aptos,sans-serif"><b><span style="font-size:10.0pt"><span style="font-family:&quot;Cambria&quot;,serif"><span style="color:#44546a">Findings</span></span></span></b><span style="font-size:10.0pt"><span style="font-family:&quot;Cambria&quot;,serif">: A total of 334 patients were included in the study. The mean age of those with positive biochemical (p<0.006) and clinical pregnancy outcomes (p<0.008) was significantly lower compared to those who did not achieve pregnancy. A significant correlation was found between endometrial thickness and both biochemical (p<0.002) and clinical pregnancy rates (p<0.007). However, no significant associations were observed between the other variables and pregnancy outcomes.</span></span></span></span></span><br> <span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Aptos,sans-serif"><b><span style="font-size:10.0pt"><span style="font-family:&quot;Cambria&quot;,serif"><span style="color:#44546a">Conclusion</span></span></span></b><span style="font-size:10.0pt"><span style="font-family:&quot;Cambria&quot;,serif">: Increasing maternal age is associated with a decline in biochemical and clinical pregnancy rates. In contrast, an increase in endometrial thickness positively correlates with higher biochemical and clinical pregnancy rates.</span></span></span></span></span> Ovarian Stimulation,Pregnancy Rate,Infertility,Clinical Pregnancy, 111 116 http://jccs.yums.ac.ir/browse.php?a_code=A-10-50-1&slc_lang=en&sid=1 F. Foroozanfard 10031947532846003907 10031947532846003907 No Gametogenesis Research Center, Kashan University of Medical Sciences, Kashan, Iran H.R. Gilasi 10031947532846003908 10031947532846003908 No Gametogenesis Research Center, Kashan University of Medical Sciences, Kashan, Iran M.S. Maboodi 10031947532846003909 10031947532846003909 No Gametogenesis Research Center, Kashan University of Medical Sciences, Kashan, Iran S.A. Taghavi 10031947532846003910 10031947532846003910 Yes Gametogenesis Research Center, Kashan University of Medical Sciences, Kashan, Iran