Introduction: In Austria, the percentage of obese people increased by 5.2% between 1999 and 2014; 14.8% of women between the age of 15 to 45 are overweight. An increased body mass index (BMI) of women increases the risk of pathologies and irregularities during pregnancy, childbirth and the puerperium. In this work, the influence of maternal obesity on selected obstetric parameters is analyzed.
Methodology: The data set includes all single births between 1.1.2008 and 31.12.2018 with a predictable BMI (n=640922) from the Austrian birth register. The maternal BMI was compared with the variables of age of the mother, parity, length of pregnancy, induction of labor, birth mode, child's APGAR value, child's umbilical cord pH value, and child's mortality and evaluated by means of a descriptive representation of the frequencies and bivariate analysis methods.
Results: A BMI of women ≥30 resulted in an increased rate of premature births, childbirth, Caesarean sections, neonatal APGAR values < 8 and ≤ 4, lower umbilical cord pH values of < 7.2 and increased rates of child mortality. In contrast, vaginal operative birth termination is less common.
Conclusions: Obesity has a negative impact on various obstetric factors. Prevention should promote a healthy lifestyle before the onset of pregnancy.
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