Table 3. Multivariate model of all-cause mortality in patients admitted to Singapore community hospitals from 1996 to 2005.

		Hazard ratio (95% Confidence Interval)	P-valuea
Comorbidity X	Disability
No	No or mild	1.00 (ref)
No	Moderate	1.77 (1.55–2.01)	<0.001
No	Severe	3.09 (2.58–3.71)	<0.001
No	Total	2.46 (2.01–3.01)	<0.001
Low	No or mild	1.47 (1.33–1.64)	<0.001
Low	Moderate	2.03 (1.82–2.26)	<0.001
Low	Severe	3.07 (2.72–3.46)	<0.001
Low	Total	3.22 (2.84–3.65)	<0.001
Moderate	No or mild	1.99 (1.76–2.24)	<0.001
Moderate	Moderate	2.69 (2.39–3.03)	<0.001
Moderate	Severe	3.29 (2.89–3.74)	<0.001
Moderate	Total	4.42 (3.89–5.03)	<0.001
High	No or mild	3.09 (2.51–3.81)	<0.001
High	Moderate	3.64 (2.96–4.46)	<0.001
High	Severe	5.03 (3.98–6.35)	<0.001
High	Total	6.57 (5.15–8.37)	<0.001
Discharge destination
Home		1.00 (ref)
Nursing Home		1.14 (1.05–1.22)	0.001
Acute hospital		1.54 (1.45–1.65)	<0.001
Socioeconomic status
High group		1.00 (ref)
Moderate group		1.12 (1.03–1.22)	0.007
Low group		1.40 (1.29–1.53)	<0.001
Community hospital
A		1.00 (ref)
B		1.10 (1.04–1.17)	0.001
C		0.94 (0.87–1.02)	0.055
D		1.21 (1.05–1.38)	0.007
Marital status
Single		1.00 (ref)
Married		1.14 (1.03–1.26)	0.009
Widowed		1.38 (1.25–1.53)	<0.001
Separated/Divorced		1.12 (0.95–1.32)	0.190

^aCox-proportional hazard model: stratified by age group (18–64, 65 and above), year of admission (1996 to 2005), gender (female, male), primary diagnosis at admission (stroke, fracture, amputation, lower limb arthroplasty, falls, others).