Table 1. Demographic characteristics of the patient and control groups.

	Patient	Control	P value
Number	115	55
Age(y)	28.4±5.1	26.6±4.6	0.06
Gestation age(w)	38.5±3.2	39.4±1.05	0.76
Weight(Kg)	77.1±9.7	83.8±5.2	0.35
Stature(cm)	159.8±10	161±5.4	0.25
BMI	30.2±8.3	32.3±4.0	0.19
Parity status	1.50±0.65	1.38±0.58	0.51

BMI = body mass index, Parity status = number of pregnancies including the current pregnancy