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 |