Table 1

Patient characteristics of both control groups and intervention groups in NICU1 and NICU227

CharacteristicsControl group NICU1
(n=140)
NIB intervention group NICU1
(n=140)
Control group NICU2
(n=140)
NIB intervention group NICU2
(n=141)
Gestational age in weeks, mean±SD27.3±1.727.6±1.527.8±1.627.4±1.5
Gender, number (%)72 male (51)75 male (54)80 male (57)66 male (47)
Birth weight z-score, mean±SD−0.8±1.3−1.0±1.4−0.8±1.4−0.9±1.4
Apgar score at 5 min, median (IQR)8 (2)8 (2)8 (2)8 (2)
Antenatal corticosteroids, % of cases69%70%74%74%
Breech position, % of cases19%21%29%26%
Caesarean section, % of cases55%58%58%61%
CRIB score, median (IQR)3 (5)3 (3)2 (4)3 (5)
Intubation rate, % of infants intubated at least once in first 72 hours after birth62%61%56%70%
Duration of endotracheal mechanical ventilation in hours, median (IQR) during first 72 hours after birth31 (70)25 (70)29 (66)35 (70)
Surfactant therapy, % of cases
Of which: using minimal invasive surfactant replacement therapy
66%
0%
70%
2% (3 infants)
52%
16% (22 infants)
66%
18% (25 infants)
Necrotising enterocolitis, number of infants (%)9 (6%)8 (6%)3 (2%)6 (4%)
Sepsis, number of infants (%)29 (21%)31 (22%)26 (19%)24 (17%)
Posthaemorrhagic ventricular dilatation with need of intervention, number of infants (%)3 (2%)1 (1%)4 (3%)1 (1%)
  • CRIB, clinical risk index for babies; NIB, nursing intervention bundle; NICU, neonatal intensive care unit.