From: Variation of results of the SMR using APACHE II, APACHE III and SAPS II
APACHE II
1–7
8–14
15–21
22–28
29–35
Risk of mortality
4.82
12.92
27.43
46.54
68.25
Crude mortality
0
12.7
42.5
60.7
50
SMR
0.982972
1.549398
1.304254
0.73260