Table 4. Other respiratory outcomes after matching with propensity score.
| InVent N = 127 |
LISA N = 127 |
p. | |
|---|---|---|---|
| Post-natal age at intubation | 30.0 [20.0;35.0] | 30.0 [25.0;39.0] | 0.205 |
| Surfactant therapy (no. of doses): | 0.783 | ||
| 1 | 120 (94.5%) | 117 (93.6%) | |
| 2 | 6 (4.72%) | 7 (5.60%) | |
| 3 | 0 (0.00%) | 1 (0.80%) | |
| 6 | 1 (0.79%) | 0 (0.00%) | |
| Duration of first ventilation associated with surfactant administration | 23.6 [13.4;47.5] | 0.00 [0.00;0.00] | <0.001 |
| Secondary intubation | 29 (22.8%) | 56 (44.4%) | <0.001 |
| Duration of mechanical ventilation (days) | 2.00 [1.00;9.00] | 0.00 [0.00;5.00] | <0.001 |
| Tracheal mechanical ventilation on day 3 | 30 (23.6%) | 23 (18.1%) | 0.354 |
| Supplemental O2 at age 28 days | 103 (85.8%) | 82 (68.3%) | 0.002 |
| Any respiratory support (mechanical ventilation or CPAP) (days) | 43.0 [32.0;64.5] | 42.0 [18.5;63.5] | 0.086 |
| Post natal age at O2 withdrawal (week’s GA) | 35 [33.0;37.1] | 34.3 [31.6;36.7] | 0.110 |
Data are presented as n (%) or the median [1st quartile; 3rd quartile]. InVent: intubation with tracheal ventilation for 1 h or more; PROM: premature rupture of membranes; LISA: less invasive surfactant administration; GA: gestational age; BPD: bronchopulmonary dysplasia; PMA: postmenstrual age