Table 2.
Prediction of CPAP failure based on logistic regression models
| Predictor | Univariate regression model |
Multivariate regression model |
Multivariate regression model (final) |
|||
|---|---|---|---|---|---|---|
| OR (95% CI) | p | OR (95% CI) | p | OR (95% CI) | p | |
| Male gender | 1.05 (0.67–1.64) | 0.821 | 1.00 (0.61–1.66) | 0.986 | - | - |
| Gestational age, weeks | 0.81 (0.68–0.97) | 0.021 | 0.99 (0.78–1.26) | 0.947 | - | - |
| Antenatal steroids | 1.51 (0.69–3.63) | 0.324 | 1.37 (0.58–3.58) | 0.497 | - | - |
| Birth weight (100 g) | 0.84 (0.76–0.90) | <0.001 | 0.85 (0.76–0.95) | 0.005 | 0.84 (0.77–0.92) | <0.001 |
| Multiple birth | 1.01 (0.58–1.70) | 0.973 | 0.98 (0.53–1.77) | 0.936 | - | - |
| Cesarean delivery | 1.62 (0.86–3.23) | 0.148 | 1.16 (0.55–2.54) | 0.708 | - | - |
| FiO2 - 1st h of life | 1.04 (1.02–1.06) | <0.001 | 1.02 (1.00–1.04) | 0.072 | 1.02 (1.00–1.04) | 0.061 |
| FiO2 - 2nd h of life | 1.08 (1.05–1.10) | <0.001 | 1.06 (1.04–1.09) | <0.001 | 1.06 (1.04–1.09) | <0.001 |
| Initial CPAP pressure, cm H2O | 1.02 (0.73–1.40) | 0.911 | 0.97 (0.67–1.38) | 0.865 | - | - |
Significantp values are indicated in bold. CPAP, continuous positive airway pressure; FiO2, fraction of inspired oxygen.