Introduction: Early diagnosis and prediction of preeclampsia needs appropriate obstetric care. Preeclampsia predicting methods are important. This study was designed to determine the correlation between preeclampsia and quadruple screening test in the nulliparous. Materials and Methods: This case - control study was conducted on 54 pregnant women with preeclampsia (case group) and 108 healthy pregnant women (control group) who referred to health centers in Sanandaj, Iran. Ultrasonography was performed to determine the gestational age by a radiologist. Maternal serum levels of alpha fetoprotein (AFP), human chorionic gonadotropin (hCG), unconjugated estriol (uE3), and inhibin-A were measured in the second trimester of pregnancy. Data were analyzed using SPSS statistical software and Chi-square test, T-test, sensitivity, specificity, positive and negative predictive values. Results: The results showed that the sensitivity and specificity for the diagnosis of preeclampsia in pregnant women for hCG were 35.2% and 79.6 respectively. These findings for estriol were 20.4% and 88.9%, for inhibin-A were 38.8% and 88% and for alpha fetoprotein were 38.8% and 74.1%. The positive predictive value for hCG, estriol, inhibin-A and alpha fetoprotein were 46.3%, 47.8%, 61.8% and 42.9% respectively. The negative predictive value for hCG, estriol, inhibin-A and alpha fetoprotein were also 71%, 69.1%, 74.2% and 70.8% respectively. Conclusion: There was a relationship between preeclampsia and high levels of inhibin-A and hCG. Further studies on these markers and evaluating their usefulness in the diagnosis and management of preeclampsia are recommended.
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