Table 2. Morbidity and mortality of the study population (chi2- test).

	Control group (N = 20)	Intervention group (N = 21)	p-value
	N (%)	N (%)
Male sex	6 (30)	6 (28.6)	0.92
Deceased	0 (0)	1 (4.8)	0.29
SGA	6 (30)	6 (28.6)	0.92
NEC	1 (5)	2 (9.5)	0.52
NEC surgery	0 (0)	2 (9.5)	0.14
IVH I+II	5 (25)	5 (23.8)	0.93
IVH III+IV	1 (5)	1 (4.8)	0.97
PDA	14 (70)	15 (71.4)	0.56

(SGA = Small for gestational age, NEC = Necrotizing enterocolitis, IVH = intraventricular haemorrhage, PDA = persisting ductus arteriosus) There were no significant differences in outcome data between groups (p>0.05).