Table 1. Demographic characteristics of the study population (Mann- Whitney- U test).

	Control group (N = 20)	Intervention group (N = 21)	p-value
	Median (Range)	Median (Range)
Birthweight (grams)	765 (503–1150)	730 (380–1400)	0.76
Length at birth (cm)	35.5 (30.5–40)	33 (27.5–40)	0.25
Head circumference at birth (cm)	24.5 (21–27)	23 (20–28.5)	0.66
Gestational age at birth (days)	193 (167–204)	182 (163–218)	0.74
Gestational age at birth (weeks)	28+2 (23+6–30+0)	26+1 (23+2–31+1)	0.74