INCIDNCE AND FETAL RISK FACTORS IN ETIOLOGY OF LOW BIRTH WEIGHT IN 5000 LIVEBORN INFANT

摘要

Objctive: To identify the low birth weight (LBW) incidence in 5000 live born babies in Bakirkoy Maternity and Children Hospital.Material and methods: LBW was defined as infant weight below 2500g and they constituted the study group. Babies with normal birth weight (NBW) chosen randomly in equal numbers from 5000 live born babies formed the control group. Infant sex, presentation, route of delivery, congenital anomaly and multiple births were also obtained.Results: In the 5000 live born babies, incidence of LBW was 9.14%. The incidences of preterm and terms were 5.7% and 3.4%, respectively. Of LBW infants, 62.8% of LBW infants were preterm, 37.2% were term. The rate of multiple gestations was found 13.9% in LBW infants and 0.8% in NBW infants. With the exclusion of multiple gestations, in LBW group, 46.4% of babies were female, 53.6% were male and, these rates were 46.3% and 53.7% in NBW group, respectively. Abdominal delivery was seen in 32.3% of LBW and 21.6% in NBW cases. The rate of breech presentation was higher in LBW (5.1%) than NBW infants (1.3%). The incidence of congenital anomaly was 6.2% in LBW group and 3.3% in NBW group.Conclusion: Infant sex did not have any influences on birth weight; presence of multiple gestation and congenital anomaly had important effects. Additionally, abdominal delivery and non-vertex presentations were observed more frequently in LBW infants.