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Table 1 Baseline Characteristics

From: The ROX index as a predictor of standard oxygen therapy outcomes in thoracic trauma

  N = 171
Age (years) 48 [31.1–67]
Sex, male, n (%) 134 (78.4)
Chronic respiratory disease, n (%) 12 (7)
Mechanism of Trauma, n (%)
 Road traffic accident 87 (50.8)
 Hit by object 16 (9.3)
 Fall/jump 62 (36.2)
 Assault 6 (3.5)
Penetrating trauma, n (%) 6 (3.5)
Isolated chest trauma, n (%) 38 (22.2)
Thoracic intercostal under water sealed drain n (%) 70 (40.9)
Injury severity score (ISS) 20 [13–25]
Abbreviated injury scale (AIS) thorax 4 [3–4]
Thoracic trauma severity score (TTSS) 8 [5–11]
Simplified acute physiology score II (SAPS II) 21 [13–33]
Acute respiratory failure, n (%) 49 (28.6)
Time to intubation (hours) 33 ± 53
Acute respiratory distress syndrome (ARDS), n (%) 24 (14)
Prone positioning, n (%) 8 (4.7)
Nitric oxide, n (%) 1 (0.6)
Extracorporeal membrane oxygenation, n (%) 2 (1.2)
Length of ICU stay (days) 4 [2–9]
ICU deaths, n (%) 9 (5.3)
  1. Data are expressed as medians [interquartile], counts (percentage) or means ± standard derivation