Risks factors for extubation outcome: multivariable analysis
| Extubation Success Group | OR | 95% CI | P values |
| Gestational age (weeks) | 1.71 | 1.04 to 2.08 | 0.03 |
| Male | 3.08 | 0.85 to 11.2 | 0.09 |
| MAP (cm H2O) presurfactant | 1.51 | 1.06 to 2.15 | 0.02 |
| FiO2 presurfactant | 0.06 | 0.00 to 1.57 | 0.09 |
| >1 dose of surfactant | 0.31 | 0.09 to 1.16 | 0.08 |
FiO2, fraction of inspired oxygen; MAP, mean airways pressure.