Table 5.
Multivariate logistic regression models for significant clinical characteristics associated with weaning failure at respiratory care center discharge*.
| Parameters | β | SE | Odds ratio (95% CI) | P | |
|---|---|---|---|---|---|
| PImax (≥−20 vs. <−20 cmH2O) | 1.596 | 0.639 | 4.935 | (1.409–17.278) | 0.013 |
| Hemoglobin (g/dL) | −0.479 | 0.198 | 0.619 | (0.420–0.913) | 0.016 |
| PaO2/FiO2 (mmHg) | −0.004 | 0.002 | 0.996 | (0.993–1.000) | 0.040 |
CI, confidence interval; FiO2, fraction of inspiratory oxygen; PaO2, arterial partial pressure of oxygen; PImax, maximal inspiratory pressure; SE, standard error. *Variables with statistical significance (P < 0.05) in the univariate analyses (Supplementary Tables S2, S3 and S4) were included in the multivariate logistic regression models. Backward variable selection was performed, and the criteria of P values for entry and stay were set at 0.05 and 0.10, respectively.