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Table 3 Odds ratios per category 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    0.0046
47–66 2 196 43.9 2.18 1.2 3.95
>66 3 171 48 2.57 1.41 4.7
PaO2/FiO2 >158 1 239 36.4 1    0.0015
105–158 2 135 46.7 1.53 1 2.35
<105 3 65 56.9 2.31 1.32 4.03
P max <27 1 233 34.8 1    0.0021
27–30 2 48 25 0.63 0.31 1.27
>33 3 134 52.2 2.05 1.33 3.17