Table 2.

Multivariate factors associated with hospitalization in internal medicine/geriatric departments and clinical outcome

Risk factors	Odds ratio (OR) (95% CI)	P
Risk factor for admission to medical wards
Chronic obstructive pulmonary disease	9.8 (1.6–59)	< 0.05
Norton scale score	0.7 (0.7–0.8)	< 0.05
Risk factors for mortality
Norton scale score	0.5 (0.3–1)	0.07
Hospitalization duration > 1 week
Impaired mental condition	3.7 (1.7–7.9)	< 0.05
Cholecystostomy
Hospitalization in surgical ward	14.7 (3.9–56.7)	< 0.05
Chronic renal failure	3.9 (1.23–13.5)	< 0.05
Chronic obstructive pulmonary disease	16.5 (2.4–116)
Institutional residency	6.3 (1.6–24.9)	< 0.05
Serum sodium	0.9 (0.8–1)	< 0.05
White blood count	1.1 (1.0–1.2)	< 0.05