Table 3.

Multivariate logistic regression analysis of prognostic factors associated with 30-day mortality.

Variables	OR (95% CI)	P value
Bedridden state	2.64 (1.52–4.58)	< 0.001
Confusion	2.54 (1.40–4.62)	0.003
Hypoxemia#	2.27 (1.29–4.01)	0.004
BUN ≥ 30 mg/dl	2.82 (1.62–4.91)	< 0.001
Alb ≤ 3.0 g/dl	3.03 (1.74–5.27)	< 0.001

Data are presented as n (%).

^#Hypoxemia: SpO₂ ≤ 90% or PaO₂ ≤ 60 mmHg.

OR, odds ratio; CI, confidence interval; Alb, albumin; BUN, blood urea nitrogen.