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Table 2 Logistic regression analysis of maternal and obstetric outcomes

From: Impact of maternal body mass index on neonatal outcome

Dependent variables healthy weight underweight OR (95%-CI) overweight OR (95%-CI) obese OR (95%CI)
peripheral edema 1st Trimester 1 NS 2.62(1.14-6.00)* 3.47(1.22-9.87)*
peripheral edema 2nd Trimester 1 NS 2.56(1.83-3.59)** 3.59(2.27-5.70)**
peripheral edema 3rd Trimester 1 0.50(0.32-0.77)* 2.53(1.94-3.28)** 3.23(2.17-4.80)**
new-onset periph. edema 3rd Tr. 1 0.47(0.29-0.76)* 2.43(1.85-3.20)** 2.86(1.90-4.30)**
hypertensive complications 1 NS 2.72(1.74-4.25)** 3.99(2.14-7.44)**
caesarean section 1 NS 1.73(1.31-2.28)** 1.82(1.20-2.77)*
adverse fetal presentation 1 NS NS NS
fetal macrosomia (> 4000 g)& 1 NS 1.54(1.06-2.24)* 2.07(1.25-3.42)*
preterm delivery (< 37 week) 1 2.39(1.46-3.89)** 1.65(1.10-2.49)* NS
LGA 1 NS 1.62(1.14-2.32)* 2.57(1.64-4.04)**
SGA 1 NS 0.49(0.29-0.83)* NS
admission to neonatal unit& 1 NS 1.47(1.09-1.99)* 2.22(1.47-3.36)**
  1. *: p < 0.05
  2. **: p < 0.001
  3. &: adjusted for child sex and gestational age on top of the covariates mentioned below
  4. LGA/SGA: Large/small for gestational age
  5. Maternal incidence of peripheral edema, hypertensive complications (pregnancy induced hypertension and pre-eclampsia) as well as a various parameters affecting obstetric outcome were analyzed using logistic regression analysis. Mothers with pregestational diabetes and multiple pregnancies were excluded, mothers were grouped according to their BMI, healthy weight mothers were used as reference. Maternal age, smoking and parity were used as covariates in all analyses.