Table 2.

Hosmer-Lemeshow’s H chi-square tests for APACHE II, APACHE IV, SAPS 3, and MPM₀ III

Scoring system	Predicted death rate	Number	Non-survivor		Survivor
			Observed	Expected	Observed	Expected
APACHE II	0.0≤P<0.1	67	6	5.99	61	61.01
	0.1≤P<0.2	71	15	10.34	56	60.66
	0.2≤P<0.3	65	14	12.08	51	52.92
	0.3≤P<0.4	56	15	12.16	41	43.84
	0.4≤P<0.5	48	11	12.46	37	35.54
	0.5≤P<0.6	62	16	18.47	46	43.53
	0.6≤P<0.7	69	20	24.59	49	44.41
	0.7≤P<0.8	76	28	34.54	48	41.46
	0.8≤P<0.9	65	35	36.21	30	28.79
	0.9≤P<1.0	57	50	43.15	7	13.85
Chi-square 12.540 with 8 DF (P=0.129)
APACHE IV	0.0≤P<0.1	64	7	5.62	57	58.38
	0.1≤P<0.2	66	13	9.10	53	56.90
	0.2≤P<0.3	64	11	11.56	53	52.44
	0.3≤P<0.4	70	10	15.40	60	54.60
	0.4≤P<0.5	64	18	16.74	46	47.26
	0.5≤P<0.6	66	20	20.22	46	45.78
	0.6≤P<0.7	68	22	25.19	46	42.81
	0.7≤P<0.8	64	28	29.40	36	34.60
	0.8≤P<0.9	65	44	39.54	21	25.46
	0.9≤P<1.0	45	37	37.23	8	7.77
Chi-square 6.959 with 8 DF (P=0.541)
SAPS 3	0.0≤P<0.1	65	9	8.61	56	56.39
	0.1≤P<0.2	64	11	11.67	53	52.33
	0.2≤P<0.3	62	14	13.57	48	48.43
	0.3≤P<0.4	64	15	15.88	49	48.12
	0.4≤P<0.5	67	11	18.56	56	48.44
	0.5≤P<0.6	74	24	23.71	50	50.29
	0.6≤P<0.7	70	34	26.16	36	43.84
	0.7≤P<0.8	63	31	27.68	32	35.32
	0.8≤P<0.9	64	32	34.35	32	29.65
	0.9≤P<1.0	43	29	29.80	14	13.20
Chi-square 9.290 with 8 DF (P=0.318)
MPM0 III	0.0≤P<0.1	92	22	21.17	70	70.83
	0.1≤P<0.2	34	7	8.61	27	25.39
	0.2≤P<0.3	112	39	30.11	73	81.89
	0.3≤P<0.4	59	13	16.48	46	42.52
	0.4≤P<0.5	64	22	19.38	42	44.62
	0.5≤P<0.6	82	23	27.90	59	54.10
	0.6≤P<0.7	68	18	25.39	50	42.61
	0.7≤P<0.8	62	29	26.66	33	35.34
	0.8≤P<0.9	63	37	34.31	26	28.69
	0.9≤P<1.0	92	22	21.17	70	70.83
Chi-square 11.128 with 7 DF (P=0.133)

APACHE: Acute Physiology and Chronic Health Evaluation; SAPS: Simplified Acute Physiology Score; MPM: Mortality Probability Model.