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Table 4 Odds ratios per category recalibrated APPS

From: External validation of the APPS, a new and simple outcome prediction score in patients with the acute respiratory distress syndrome

Variable Range Category N Hospital mortality (%) OR OR 2.5 % OR 97.5 % P for trend
Age <47 1 72 26.4 1    0.0021
47–59 2 96 41.7 1.99 1.03 3.87
>59 3 271 47.2 2.5 1.4 4.44
PaO2/FiO2 >158 1 239 36.4 1    0.0015
105–158 2 135 46.7 1.53 1.00 2.35
<105 3 65 56.9 2.31 1.32 4.03
P max <30 1 281 33.1 1    0.0001
30–33 2 40 45 1.65 0.85 3.23
>33 3 94 55.3 2.5 1.55 4.03