Table 1 Sample characteristics
Variable | Updating cohort (n = 1629) | Validation cohort (n = 2811) | Fraction of missing data (%) |
|---|---|---|---|
Age | 35 (24–47) | 35 (25–46) | 0/0 |
Male % | 80 (78–82) | 80 (79–82) | 0/0 |
Mechanism of injury % | 0/0 | ||
Fall | 27 (25–29) | 26 (25–28) | |
Railway accident | 7 (6–8) | 6 (5–7) | |
Road traffic accident | 46 (44–49) | 46 (44–47) | |
Assault | 9 (7–10) | 11 (9–12) | |
Burn | 6 (5–7) | 7 (6–8) | |
Other | 4 (3–5) | 5 (4–5) | |
Delay, time from injury to admission (hours) | 7 (2–28) | 7 (2–26) | 6/4 |
Transferred % | 68 (65–70) | 71 (69–72) | 0/0 |
Systolic blood pressure | 116 (106–125) | 120 (110–130) | 20/9 |
Heart rate | 90 (80–98) | 89 (80–98) | 18/3 |
Glasgow coma scale | 15 (9–15) | 15 (9–15) | 20/8 |
24-h mortality % | 6 (4–7) | 7 (6–8) | 0/0 |