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Table 2 Standard Oxygen Outcomes

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

  Success Failure p value
  (n = 122) (n = 49)
Age (years) 47 [28.6–63.8] 56.7 [41.2–72] 0.02
Sex, male, n (%) 95 (77.8) 39 (79.6) 0.8
Chronic respiratory disease, n (%) 6 (4.9) 6 (12.2) 0.08
Isolated chest trauma, n (%) 26 (21.3) 12 (24.5) 0.6
Thoracic intercostal under water sealed drain n (%) 36 (29.5) 34 (69.4) < 0.0001
Severity score:
 - ISS 17 [13–24] 20 [16–29] 0.0001
 - AIS Thorax 3 [3–4] 4 [4–4] 0.003
 - TTSS 8 [4–10] 12 [9–14] < 0.0001
 - SAPS II 17 [11–25] 34 [16–29] < 0.0001
HFNC required in initial 24 h, n (%) 0 (0) 6 (12.2) < 0.0001
NIV required in initial 24 h, n (%) 2 (1.6) 0 (0) < 0.0001
Rox Index
 H0 15.5 [11.7–20.8] 7.3 [4.9–10.6] < 0.0001
 H2 17.6 [12.9–21.4] 10.7 [5.3–14.8] < 0.0001
 H6 17.8 [14.6–23.1] 11.1 [7.9–18.5] 0.001
 H12 18.2 [15.1–22.8] 2.9 [7.8–18.5] 0.0013
 H24 18.2 [14.9–23.8] 13.6 [7.9–16.6] 0.0013
Mean/24 h 17.8 [14.4–22.1] 8.4 [4.9–11.7] < 0.0001
ICU deaths, n (%) 1 (0.82) 8 (16.3) < 0.0001
  1. Data are expressed as medians [interquartile] or counts (percentage), HFNC High flow nasal cannula, NIV Non-invasive ventilation