STUDY OF SOME RELATED FACTORS WITH FETAL MACROSOMIA AND LOW BIRTH WEIGHT

Birth weight is one of the major factors determining the physical and mental development of infants and a credible sign of intrauterine growth. The purpose of this study was to investigate factors associated with macrosomia and low birth weight in women referred to delivery room of Specialized Hospital in 2010.

In this cross sectional study, 3076 women with the normal vaginal delivery (NVD) entered into the study population. The Statistical Package for the Social Sciences, SPSS 17 for Windows, was used for the analysis. Data analysis was performed by using descriptive and analytical statistics (mean ±SD), Chi-square test, independent sample t- test, ANOVA, post hoc scheffe and linear regression). The significant level was set at less than 0.05 (P < 0.05).

The prevalence rate of low birth weight was 6.7% (205) and macrosomia 3.2% (97). Average neonatal birth weight was 3248.18 ± 458gr and maternal age was 25.33 ± 5.7 years. On the basis of linear regression, types and number of delivery, neonatal sex, preeclampsia and age of mother were respectively the most important factors of low birth weight. None of them related to macrosomia.

Our findings showed that we can decrease the prevalence of low birth weight and macrosomia which result in normal birth weight by detection and controlling of many factors related to the birth weight.