Table 3 Mortality rates by categories of the 2008 score and the new score
From: A clinical in-hospital prognostic score for acute exacerbations of COPD
2008 score | New score | ||||
|---|---|---|---|---|---|
Categories | Groups* | Deaths n (%) | Tertiles | Deaths n (%) | |
Derivation cohort | Validation cohort | ||||
0-1 point | 692 (37.9%) | 5 (0.7%) | 0 point | 1 (0.3%) | 0 (0%) |
2-3 points | 672 (36.8%) | 11 (1.6%) | 1-2 points | 4 (1.3%) | 5 (1.6%) |
4-6 points | 460 (25.2%) | 29 (6.3%) | 3-9 points | 18 (5.8%) | 17 (5.5%) |