Background:Macrosomia is defined as birth-weight over 4,000 g irrespective of gestational age and affects 3-15% of all pregnancies. Aim The present study aimed to determine the relationship between mother's characteristics and macrosomic births and also compare macrosomic and normal newborns regarding the maternal and offspring complications of diabetes during pregnancy.Subjects and Methods:In this case control study, among the 420 consecutive births occurring in public and private hospitals of Shiraz, Iran from October 2006 to March 2007, the data of 32 macrosomic and 128 normal newborns were analyzed using t-test and chi square in bivariate and logistic regression in multivariate model.Results:The mean (SD) of neonate weight, height, and head size was 3323.4 (709), 48.95 (3.2), and 34.9 (1.8), respectively. Regression analysis showed that gestational diabetes (Odds Ratio (OR): 11.9, Confidence Interval (CI): 4.6-30.3), preeclampsia in the pregnancy period due to diabetes (OR: 3.81, CI: 1.1-13.2), and macrosomic birth history (OR: 3.3, CI: 1.04-10.4) were the main predictors of macrosomia. Moreover, macrosomia increased neonate hypoglycemia (OR: 4.7, CI: 1.4-15.8) and section delivery (OR: 4.1, CI: 1.27-13.1).Conclusion:Gestational diabetes, preeclampsia due to diabetes, and history of macrosomic birth were the main predictors of macrosomia. Moreover, macrosomia increased some delivery complications for both mothers and newborns.

Background: The increasing trend of both obesity and postural disorders in pediatric population. Objectives: We aimed to determine the prevalence of lower extremities' postural disorders among school children in Qom province, Iran. Methods: In this cross-sectional study, a representative sample of schoolchildren aged 6-7 years was selected by multi-stage clustering method from all urban and rural regions of Qom province. Presence of postural deformities of lower limbs, including genu valgum, genu varum and flat foot were evaluated and recorded. Prevalences of deformities in different categories of weight status (underweight, normal and overweight) were compared. Results: Out of 20000 school children 1450 students were randomly selected. Genu valgum, genu varum and flat foot was present in 256 (17.7%), 351 (24.2%) and 194 (13.38%) of studied population. 1021 (70.41%), 161 (11.1%) and 268 (18.48%) students were normal weight, underweight and overweight/obese, respectively. Prevalence of flat foot and genu valgum was significantly higher in obese/overweight students (P < 0.01). Mean of skin fold thickness was significantly higher in students with genu valgum (P < 0.001). A significant relation existed only between occurrence of lower limb postural deformities and body mass index [OR = 1.89, CI (95%) = 1.18-3.03]. Conclusions: The findings of this study indicate that prevalence of genu valgum and flat foot are higher in overweight/obese children. In addition to early diagnosis and timely treatment of the deformities, developing and validation of a multidisciplinary care for obese and overweight children to reduce the occurrence of obesity related musculoskeletal complications is of importance.

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