Groups Sample size Age (year old) Gestational age at delivery(week) BMI(kg/m²) Neonatal weight(kg)
VD 2099(62.01) 29.93±3.03 38.957±1.16 20.79±2.56 3272.26±337.49
CD 1286(37.99) 29.99±3.53 38.838±1.36 20.92±2.11 3279.62±422.97
t/Z -0.466 -0.832 -1.649 -0.530
P 0.641 0.405 0.099 0.596