Table 4. Multivariate analysis of factors predicting 30-day mortality.

Factors	P value	OR	95% CI
			Minimum	Maximum
Sex	0.689	0.782	0.234	2.608
Age	0.293	1.013	0.989	1.037
Prior intubation time	0.777	1.009	0.950	1.071
Septic shock	0.002*	0.110	0.026	0.456
Bacteremia	0.343	0.607	0.216	1.705
APACHE II scores	0.950	0.997	0.915	1.087
Prior glucocorticoids use	0.105	0.341	0.093	1.253
Superinfection	0.228	2.045	0.640	6.533

*, P<0.05.