Table 1

Perinatal clinical characteristics

Characteristic Study group (n = 31) Control group (n = 35) p value
Male gender42540.450
Gestational age (wk)28 (24–32)31 (24–32)0.003
Birth weight (g) 1150 (670–2060)1360 (680–2680)0.118
Small for gestational age10290.068
Singleton births 58800.065
Apgar score <7 at 5 min 42200.065
Umbilical artery catheter61430.212
 Duration of use (days) 4 (0–18)0 (0–13)0.032
RDS 6117<0.001
Assisted ventilation 9046<0.001
 Duration of use (days) 10 (0–59)0 (0–65)0.001
Oxygen supplementation100740.003
 Duration of use (days)42 (4–115)4 (0–118)<0.001
Treatment with inotropics55430.468
 Duration of use (days) 0.5 (0–6.6)0 (0–4.6)0.240
Primary hospitalisation
 Duration of use (days)78 (27–143)41 (19–123)0.004
  • Categoric data are shown as % and continuous data as median (range).