Abstract
ObjectiveTo show the relation between fetal gender and preterm birth (PTB) in low values of first trimester aneuploidy test markers. Material and methodA total of 29,528 patients included the study of them 7382 was PTB and all patients grouped according to fetal gender. Demographic data and perinatal complications were determined. According low PAPP-A MoM (<0.4) and low free BhCG MoM (<0.5) values PTB subgroup relative risks were calculated for each fetal gender. ResultsThe PTB rate and birth weight was significantly higher in male gender. At low PAPP-A MoM values Late PTB in male infant (aRR 95% CI 2.028) and late miscarriage (LM) category with low free BhCG MoM values in female infant (aRR 95% CI 0.907) was determined statistically significant. ConclusionsMale gender has an effect on PTB rate. İn low values of first trimester aneuploidy test markers late PTB risk is increasing in male gender and also LM risk is decreasing in female gender. Further studies are required in order to determine the relation between PTB and fetal gender and first trimester aneuploidy screening test.
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