Relationship between Serum Inhibin A and Pregnancy Outcomes

Background and Objective: Some studies have shown that abnormal levels of biomarkers may be associated with adverse pregnancy outcomes. This study aimed to investigate the association between serum levels of Inhibin A and the outcomes of pregnancy. Materials and Methods: This retrospective cohort study was conducted on the data obtained from the Inhibin A of 560 pregnant women at 15 to 20 weeks of gestation in Hamadan, Iran. The levels of Inhibin A less than 0.5 and higher than 2 mmol were considered below and high, respectively. The patients were assessed in terms of birth weight, gestational age, Apgar score, preeclampsia, intrauterine fetal death, and cesarean section. The receiver operating characteristic curve level was calculated to detect adverse pregnancy complications. The data were statistically analyzed in STATA software (version 14). Results: Out of the pregnant women eligible for the study, 33 (5.9%) cases were excluded due to incomplete medical record files and unavailability. Of the remaining 527 patients, 378 (71.7%), 26 (4.9%), and 123 (23.3%) ones had normal, low, had high Inhibin A levels, respectively. Patients with higher serum Inhibin A levels had a higher risk of preeclampsia, low birth weight, and prematurity, compared to those with normal or low levels (P˂0.05). Conclusion: Based on the findings of the present study, high levels of Inhibin A at 15 to 20 weeks of gestation can be associated with the risk of preeclampsia, low birth weight, and prematurity.