Table 2. Risk factors associated with in-hospital mortality determined with stepwise logistic regression.

Variable	Crude odds ratio (95% CI)	P value	Adjusted odds ratio (95% CI)	P value
Age
<80 years	1.00		1.00
≥80 years	1.49 (1.15–1.92)	0.002	1.47 (1.12–1.94)	0.006
Albumin
>2.0 g/dl	1.00		1.00
≤2.0 g/dl	4.15 (2.99–5.76)	<0.001	3.84 (2.73–5.38)	<0.001
APACHE II scores
<15	1.00		1.00
≥15	2.25 (1.71–2.96)	<0.001	1.63 (1.22–2.18)	0.001
Required haemodialysis
No	1.00		1.00
Yes	2.84 (2.13–3.78)	0.001	2.41 (1.77–3.29)	<0.001
Had at least one comorbidity
No	1.00		1.00
Yes	2.54 (1.84–3.52)	<0.001	1.98 (1.40–2.80)	<0.001