Table 3. Comparison of CCSR model with other models in mortality outcomes among top 10 diagnostic categories of hospitalizations.

CCSR: Clinical Classifications Software Refined; CCI: Charlson Comorbidity Index; STD: sexually transmitted diseases; SW: stepwise backward; TB: tuberculosis

CCSR categories	Mortality, %	CCSR bootstrapped model	CCSR model with SW	CCI weights	CCI total	CCI grouped	Elixhauser model
Septicemia (except in labor)	8.99	0.738	0.738	0.688	0.639	0.623	0.66
Respiratory failure; insufficiency; arrest	9.36	0.74	0.74	0.7	0.575	0.579	0.623
Acute cerebrovascular disease	3.94	0.677	0.684	0.645	0.593	0.551	0.598
Pneumonia (except caused by TB or STD)	2.46	0.745	0.748	0.701	0.647	0.625	0.72
Acute myocardial infarction	4.58	0.733	0.735	0.661	0.626	0.605	0.709
Congestive heart failure	2.6	0.56	0.693	0.613	0.548	0.531	0.684
Aspiration pneumonitis	7.12	0.651	0.653	0.619	0.57	0.556	0.61
Acute and unspecified renal failure	2.3	0.759	0.76	0.721	0.636	0.598	0.706
Secondary malignancies	5.51	0.679	0.685	0.599	0.578	0.5	0.657
Traumatic brain injury	8.76	0.613	0.638	0.571	0.509	0.535	0.64