Table 1

Patient characteristics and baseline parameters on Study Day 1 and Study Day 2 including last haematocrit, actual dose of caffeine, mode of respiratory support, supplemental oxygen and number of patients which are already set on elevated SpO2 target range for clinical reasons

Patient characteristicsn (%)MedianRange 
Number of patients16 
Gestational age (weeks)25.922.6–30.4 
Birth weight (g)537312–1150 
Antenatal corticoids (complete course)10 (63) 
Mild BPD (28 days O2)15 (94) 
Moderate or severe BPD (O2 at 36 weeks)6 (38) 
Intracranial haemorrhage1 (6) 
Study DayStudy Day 1Study Day 2
n (%)MedianRangen (%)MedianRange
Age (days)30.57–5234.58–58
Weight (g)812605–1336925605–1365
Caffeine (mg/kg/day)6.05.0–10.07.05.0–10.0
Haematocrit (%)44.531–5341.029–55
Respiratory support 
 CPAP8 (50)8 (50) 
 NIPPV5 (31)6 (38) 
 Invasive ventilation3 (19)2 (12) 
 Supplemental oxygen (%)2721–502621–43
Elevated SpO2 target range (85–96%)5 (31)5 (31) 
  • BPD, bronchopulmonary dysplasia; CPAP, continuous positive airway pressure; NIPPV, non-invasive positive pressure ventilation; SpO2, pulsoximetric oxygen saturation.