Table 1 Marginal/crude patient characteristics
Patient category | Trauma | Non-trauma | All patients | P-value | |||
|---|---|---|---|---|---|---|---|
n | % | n | % | n | % | ||
Patients | 843 | 100% | 422 | 100% | 1265 | 100% | |
Age | < 0.001 | ||||||
0–5 years | 19 | 2% | 22 | 5% | 41 | 3% | |
6–14 years | 36 | 4% | 9 | 2% | 45 | 4% | |
15–29 years | 227 | 27% | 38 | 9% | 265 | 21% | |
30–49 years | 276 | 33% | 83 | 20% | 359 | 29% | |
50–69 years | 185 | 22% | 151 | 37% | 336 | 27% | |
> 70 years | 83 | 10% | 109 | 26% | 192 | 16% | |
Missing data | 17 | 2% | 10 | 2% | 27 | 2% | |
Sex | < 0.001 | ||||||
Male | 622 | 74% | 266 | 64% | 888 | 70% | |
Missing data | 1 | 0% | 3 | 1% | 4 | 0% | |
Comorbidity (ASA-PS) | < 0.001 | ||||||
ASA class 1 | 500 | 67% | 100 | 26% | 600 | 53% | |
ASA class 2 | 188 | 25% | 146 | 38% | 334 | 29% | |
ASA class 3 | 58 | 8% | 120 | 31% | 178 | 16% | |
ASA class 4 | 4 | 1% | 19 | 5% | 23 | 2% | |
ASA class 5 | 0 | 0% | 4 | 1% | 4 | 0% | |
Missing data | 90 | 11% | 29 | 7% | 119 | 9% | |
Indication for pre-hospital TI | < 0.001 | ||||||
Decreased consciousness | 510 | 61% | 277 | 69% | 787 | 64% | |
Ineffective ventilation | 69 | 8% | 58 | 14% | 127 | 10% | |
Combative or uncooperative | 93 | 11% | 9 | 2% | 102 | 8% | |
Impending airway obstruction | 68 | 8% | 12 | 3% | 80 | 6% | |
Hypoxia | 26 | 3% | 25 | 6% | 51 | 4% | |
Relief of pain or distress | 44 | 5% | 4 | 1% | 48 | 4% | |
Existing airway obstruction | 13 | 2% | 12 | 3% | 25 | 2% | |
Other | 8 | 1% | 6 | 1% | 14 | 1% | |
Missing data | 12 | 1% | 19 | 5% | 31 | 2% | |
Attempts at pre-hospital TI | < 0.001 | ||||||
One attempt | 772 | 92% | 360 | 86% | 1132 | 90% | |
Multiple attempts | 68 | 8% | 60 | 14% | 128 | 10% | |
Missing data | 3 | 0% | 2 | 0% | 5 | 0% | |