Table 4.

Predictors of weaning failure from mechanical ventilation

	Univariate		Multivariate
	Odds ratio (95%CI)	P value*	Odds ratio (95%CI)	P value*
Female	0.66 (0.31–1.4)	0.27
Age (≥70 y/o)	2.2 (1.1–4.2)	0.02
Lactate ≥2.0 mmol/L	2.6 (1.3–5.3)	0.071	2.3 (1.1–5.1)	0.029
HRCT score ≥ 210	2.5 (1.1–5.3)	0.02	2.4 (1.0–5.6)	0.049
APACHE II ≥ 23	2.1 (1.1–4.2)	0.027
Chronic heart disease	1.9 (0.8–4.3)	0.12
Diabetes	1.3 (0.35–1.7)	0.493

*Logistic regression analysis