Table 1 Characteristics of injured patients
Missing value (%) | Age < 55 years N = 12,730 N (%) | Age 55–74 years N = 7,457 N (%) | Age ≥ 75 years N = 17,719 N (%) | |
|---|---|---|---|---|
Gender female (%) | 0 | 4,461 (35) | 3,689 (49) | 12,303 (69) |
Mechanism of injury | 56 (0) | |||
Motor vehicle accident | 5,281 (42) | 1,883 (25) | 1,172 (7) | |
Included High energy | 1,059 (8) | 321 (4) | 147 (1) | |
Fire gun | 22 (0) | 8 (0) | 30 (0) | |
Stabbing | 341 (3) | 38 (1) | 35 (0) | |
Blunt force trauma/crush injury | 766 (6) | 102 (1) | 49 (0) | |
Fall – low energy and unknown | 3,238 (25) | 4,226 (57) | 14,414 (81) | |
Fall – high energy | 506 (4) | 343 (5) | 492 (3) | |
Others | 2,587 (20) | 861 (12) | 1,529 (9) | |
Transport | 12 (0) | |||
Ambulance | 11,901 (94) | 7,133 (96) | 17,444 (99) | |
Helicopter | 419 (3) | 170 (2) | 37 (0) | |
No transport | 403 (3) | 154 (2) | 233 (1) | |
Distance to regional trauma center | 525 (1) | 17 (14) | 18 (14) | 16 (13) |
Helicopter, mean Km (sd) | 33 (9) | 35 (9) | 31 (9) | |
Ambulance, mean Km (sd) | 17 (14) | 18 (13) | 16 (13) | |
Hospital catchment area outside regional trauma centre | 6,850 (56) | 4,452 (60) | 10,110 (57) | |
Systolic blood pressure, mean (sd) | 4,267 (11) | 121 (21) | 132 (26) | 142 (27) |
SBP < 100 mmHg | 1,057 (10) | 590 (9) | 730 (5) | |
Glasgow coma scale | 3,143 (8) | |||
3–8 | 217 (2) | 80 (1) | 100 (1) | |
9–12 | 145 (1) | 71 (1) | 176 (1) | |
13–15 | 11,110 (97) | 6,746 (98) | 16,118 (98) | |
BATT score | 5,992 (16) | |||
Risk of death unlikely (0–2) | 8,641 (85) | 5,377 (84) | 12,840 (83) | |
Low risk (3–4) | 336 (3) | 384 (6) | 1,587 (10) | |
Intermediate risk (5–7) | 932 (9) | 509 (8) | 763 (5) | |
High risk (≥ 8) | 194 (2) | 131 (2) | 220 (2) | |
MGAP score | 3,143 (9) | |||
High risk (3–17) | 164 (1) | 88 (1) | 121 (1) | |
Intermediate risk (18–22) | 119 (1) | 1,563 (23) | 3,472 (21) | |
Low risk (23–29) | 11,189 (98) | 5,246 (76) | 12,801 (78) | |