Clinical characteristics
| Term | Preterm | Control | |
|---|---|---|---|
| *p<0.01 compared with term and control infants. | |||
| †p<0.01 compared with term infants. | |||
| Number of patients/males | 24/7 | 23/12 | 10/2 |
| Mean (SD) admission weight, kg | 4.2 (1.2) | 3.5 (1.3) | 3.3 (0.8) |
| Mean (SD) gestation at birth, weeks | 38.7 (1.6) | 30.1 (3.6)* | 38.4 (1.4) |
| Mean (SD) age on admission, weeks | 6.1 (4.9) | 16.0 (14.7)* | 1.0 (2.5) |
| Mean (SD) corrected age, weeks | 4.8 (5.5) | 5.6 (13.1) | 0.4 (3.2) |
| Mean (SD) time from disease onset to intubation, days | 5.7 (2.9) | 5.4 (2.2) | – |
| Median (IQR) time ventilated, hours | 96 (32) | 151 (130)† | – |
| Mean (SD) PIM score | 0.124 (0.07) | 0.147 (0.08) | – |