Table 1.
Demographic data and trauma severity of the study population
| Cohort | p value (ET vs TR) | ||||
|---|---|---|---|---|---|
| ET | ET, then TR | Total | ANOVA | Kruskal–Wallis | |
| Patients, n (%) | 1,603 (74) | 553 (26) | 2,156 (100) | ||
| Age (years; median IQR) | 58 (40–74) | 62 (47–75) | 59 (42–74) | 0.004 | |
| Sex | |||||
| Male, n (%) | 1,167 (73) | 394 (71) | 1,561 (72) | 0.49 | |
| Female, n (%) | 434 (27) | 158 (29) | 592 (28) | 0.49 | |
| AIS head score, n (%) | |||||
| 2 | 85 (5.3) | 8 (1.5) | 93 (4.3) | < 0.001 | |
| 3 | 300 (18.7) | 88 (15.9) | 388 (18.0) | 0.14 | |
| 4 | 636 (39.7) | 257 (46.5) | 893 (41.4) | 0.005 | |
| 5 | 582 (36.3) | 200 (36.1) | 782 (36.3) | 0.95 | |
| GCS score, median (IQR) | 6 (3–8) | 6 (3–8) | 6 (3–8) | 0.90 | |
| SAPS II, median (IQR) | 45 (36–56) | 45 (35–56) | 45 (37–54) | 0.86 | |
| No comorbidity, n (%) | 1,146 (72) | 378 (68) | 1,524 (71) | 0.16 | |
| Mortality predicted by SAPS II, % | 40 | 38 | 39 | 0.86 | |
AIS Abbreviated Injury Scale, ANOVA analysis of variance, CI confidence interval, ET endotracheal tube, GCS Glasgow Coma Scale score, IQR interquartile range, SAPS Simplified Acute Physiology Score, TISS Therapeutic Intervention Scoring System, TR tracheostomy