Table 5 Regression coefficients from multiple regression model for time to wean success (n = 1358).
Predictor | Category | Coefficient (95% CI) | P-value |
|---|---|---|---|
Age | < 30 | 0 | < 0.001 |
30–49 | 0.13 (− 0.16 to 0.42) | ||
50–69 | 0.25 (− 0.03 to 0.54) | ||
70 + | 0.46 (0.17 to 0.76) | ||
Sex | − 0.146 (− 0.224 to − 0.069) | < 0.001 | |
Anticoagulant | 0.112 (0.037 to 0.188) | 0.004 | |
Inotropic support | 0.101 (0.021 to 0.180) | 0.013 | |
Use of NIV | 0.175 (0.101 to 0.249) | < 0.001 | |
Days of ventilation before tracheostomy | ≤ 7 | 0 | 0.004 |
8–14 | 0.13 (0.05 to 0.21) | ||
> 14 | 0.21 (− 0.11 to 0.52) | ||
FiO2 requirement | < 30 | 0 | < 0.001 |
30–39 | 0.15 (0.04 to 0.27) | ||
40–49 | 0.24 (0.12 to 0.36) | ||
50 + | 0.37 (0.23 to 0.51) | ||
PO2 | < 8 | 0 | 0.015 |
8–10 | − 0.10 (− 0.25 to 0.06) | ||
10.01–12 | − 0.15 (− 0.31 to 0.01) | ||
12.1–14 | − 0.24 (− 0.42 to − 0.05) | ||
> 14 | − 0.30 (− 0.51 to − 0.08) | ||
PEEP setting | < 6 | 0 | 0.001 |
6–7.9 | 0.06 (− 0.06 to 0.18) | ||
8–9.9 | 0.16 (0.05 to 0.26) | ||
10 + | 0.21 (0.09 to 0.32) | ||
Method of tracheostomy (baseline category is ‘open’ tracheostomy) | 0.105 (0.030 to 0.181) | 0.006 |
