Table 4.

Comparison of concordance (C) statistics and Akaike information criterion (AICs) from logistic regression models predicting death within 1 year from diagnosis for each jurisdiction and country. For ease of interpretation the lowest AIC is set to 0, with the difference between that model’s AIC and the other models’ AIC represented in the table.

	New South Wales		Victoria		Alberta		Ontario		Norway		England		Northern Ireland		Scotland		Wales
	c	AIC	c	AIC	c	AIC	c	AIC	c	AIC	c	AIC	c	AIC	c	AIC	c	AIC
Baseline model	0.62	35	0.62	26.04	0.59	12.6	0.58	19.32	0.63	2.53	0.61	110	0.60	13.7	0.60	39.8	0.61	4.9
+Charlson	0.62	16.8	0.62	0	0.59	6.47	0.58	0	0.63	0	0.61	15.9	0.60	15	0.60	30.2	0.61	2.7
+Elixhauser	0.62	6.7	0.62	4.53	0.59	10.5	0.58	6.43	0.63	6.17	0.61	0	0.60	16.5	0.60	30.2	0.61	8.2
+IPD	0.62	0	0.62	7.54	0.59	0	0.58	2.89	0.63	3.28	0.61	78	0.60	0	0.60	0	0.61	0

	Australia		Canada		Norway		UK		Overall
	c	AIC	c	AIC	c	AIC	c	AIC	c	AIC
Baseline model	0.62	54.3	0.58	32.75	0.63	2.53	0.61	115.5	0.61	216
+Charlson	0.62	7.64	0.58	0	0.63	0	0.61	0	0.61	0
+Elixhauser	0.62	1.75	0.58	8.34	0.63	6.17	0.61	1.9	0.61	12.1
+IPD	0.62	0	0.58	0.03	0.63	3.28	0.61	36.7	0.61	93.2

IPD, in-patient days.