Table 2.

Significant predictors of the failed extubation of all planned extubation patients.

Variable	OR	95% CI	P *	OR	95% CI	P **
Age (years)	1.107	1.007–1.027	0.001
APACHE II	1.046	1.027–1.066	<0.001
TISS Scale	1.036	1.017–1.055	<0.001	1.814 #	1.283–2.563	0.001
Glasgow coma scale	0.930	0.894–0.967	<0.001
Comorbidities
Chronic hemodialysis	12.970	9.483–17.740	<0.001	12.264	8.556–17.580	<0.001
Diabetes	1.507	1.110–2.045	0.008
Active cancer	0.629	0.417–0.948	0.027
Ventilator use duration (h)	1.002	1.001–1.003	<0.001
Weaning parameter
RSI	1.008	1.004–1.012	<0.001	2.003 %	1.378–2.910	<0.001
MIP	0.983	0.970–0.995	0.008
MEP	0.989	0.983–0.995	<0.001	0.610 @	0.413–0.899	0.013
Pre-extubation data
Pulse rate	1.014	1.005–1.023	0.003	1.705 *	1.173–2.480	0.005
PaO2/FiO2	0.997	0.995–0.998	<0.001	0.529 &	0.373–0.750	<0.001
Hemoglobin	0.832	0.765–0.904	<0.001
Hematocrit (%)	0.961	0.939–0.984	0.001
BUN	1.012	1.007–1.017	<0.001

^#: TISS ≥ 28.5, AUC ≈ 0.6, p < 0.001; ^%: RSI ≥ 49.95, AUC ≈ 0.6, p < 0.001; ^@: MEP < 39 cm H₂O, AUC ≈ 0.6, p < 0.001; Pulse rate ≥ 102.5 /min, AUC ≈ 0.6, p = 0.026; ^&: PaO₂/FiO₂ ≤ 323.25, AUC ≈ 0.6, p < 0.001; * Value for univariate analysis; ** Value for multivariate analysis;