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Table 4 Odds ratios for parameters that showed independent association with the occurrence of pneumonia in multivariate analysis; parameters without significant association were: ISS, AISthorax = 4, AISthorax = 5, blunt/penetrating trauma mechanism, pulmonary comorbidities

From: Pneumonia in severely injured patients with thoracic trauma: results of a retrospective observational multi-centre study

Variable Odds ratio 95% CI p value
Aspiration 5.974 3.420–10.436 <  0.001
Age (per year) 1.012 1.003–1.021 0.012
Mechanical ventilation (per h) 1.005 1.005–1.006 <  0.001
Female sex 0.549 0.359–0.842 <  0.001