Prevalence of macrosomia and its related factors in neonates born in Mashhad, Iran

Background and Objective: Fetal macrosomia increases the risk of perinatal mortality and morbidity. The aim of this study was to determine the prevalence of macrosomia and its relationship with related factors in neonates born in the hospitals affiliated to Mashhad University of Medical Sciences. Methods: This cross-sectional study was performed on 97569 neonates using the data obtained from the neonates #39; screening program in Mashhad. Their information was extracted from Sina electronics system (electronic medical records software) and analyzed using SPSS 16. The prevalence of macrosomia and its related factors are revealed by tables. Findings: In this study, the prevalence of macrosomia was estimated at 6.6 % which was higher in male neonates than females. The mean birth weight was higher in male infants than female ones. It occurred 8.25 times higher in singletons than multiplets. The prevalence of macrosomia was increased by maternal age (P=0.001). Most of the neonates were born by cesarean section, and in most of them, the parents were not relatives. The prevalence of macrosomia gradually increased in parents living in densely populated cities and its trend gently decreased from the beginning to the end of the year. Conclusion: The prevalence of macrosomia in infants in Mashhad was 6.6% and was correlated with maternal age during pregnancy, infant #39;s gender, number of fetuses, mode of delivery, parental consanguinity, parental residence places and birth season.