All | RFCRS | FFCRS | P value | |
Total | 710 | 353 (51.9%) | 357 (48.1%) | |
Age | ||||
0 | 360 (53.0%) | 292 (86.6%) | 68 (16.8%) | 0.000 |
1 | 350 (47.0%) | 61 (13.4%) | 289 (83.2%) | |
Sex | ||||
Female | 350 (49.1%) | 169 (44.2%) | 181 (54.4%) | 0.406 |
Male | 360 (50.9%) | 184 (55.8%) | 176 (45.6%) | |
Weight (kg) | 12.6 (6.0) | 10.5 (5.4) | 15.1 (5.7) | 0.001 |
Height (cm) | 54.8 (21.8) | 50.1 (18.9) | 60.6 (23.6) | 0.028 |
Vehicle type | ||||
Car | 541 (79.5%) | 272 (80.9%) | 269 (78.0%) | 0.267 |
Sport Utility Vehicle | 50 (5.0%) | 26 (6.6%) | 24 (3.3%) | |
Truck | 28 (6.6%) | 15 (7.1%) | 13 (6.2%) | |
Van | 91 (8.8%) | 40 (5.4%) | 51 (12.6%) | |
Crash direction | ||||
Rear | 64 (8.2%) | 30 (6.8%) | 34 (9.7%) | 0.592 |
Frontal | 335 (41.5%) | 162 (38.4%) | 173 (44.7%) | |
Left side | 72 (15.1%) | 35 (18.8%) | 37 (11.0%) | |
Right side | 55 (6.8%) | 27 (8.3%) | 28 (5.1%) | |
Unknown | 184 (28.5%) | 99 (27.6%) | 85 (29.5%) | |
Delta-v total (km/hour) | 15.9 (9.8) | 14.5 (9.7) | 17.5 (9.6) | 0.330 |
Seat row | ||||
First | 140 (29.7%) | 97 (36.7%) | 43 (22.2%) | 0.132 |
Second | 557 (67.1%) | 251 (63.0%) | 306 (71.5%) | |
Third | 12 (3.2%) | 4 (0.3%) | 8 (6.4%) | |
Unknown | 1 (0.0%) | 1 (0.0%) | 0 (0.0%) | |
Fatally injured | 9 (0.1%) | 6 (0.1%) | 3 (0.1%) | 0.863 |
MAIS score | ||||
0 | 493 (82.4%) | 281 (81.1%) | 212 (83.8%) | 0.635 |
1 | 177 (16.8%) | 53 (18.4%) | 124 (15.1%) | |
2 | 13 (0.5%) | 6 (0.3%) | 7 (0.7%) | |
3 | 8 (0.2%) | 2 (0.1%) | 6 (0.3%) | |
4 | 9 (0.1%) | 4 (0.0%) | 5 (0.1%) | |
5 | 8 (0.1%) | 7 (0.1%) | 1 (0.0%) | |
6 | 1 (0.0%) | 0 (0.0%) | 1 (0.0%) | |
Unknown | 1 (0.0%) | 0 (0.0%) | 1 (0.0%) | |
MAIS 2+ injury | ||||
Frontal crashes | 18 (1.0%) | 9 (0.5%) | 9 (1.5%) | 0.122 |
Side crashes | 9 (1.0%) | 2 (0.1%) | 7 (2.6%) | 0.001 |
Rear crashes | 5 (0.6%) | 2 (0.4%) | 3 (0.8%) | 0.505 |
All crashes | 40 (0.9%) | 19 (0.5%) | 21 (1.2%) | 0.215 |
FFCRS, forward-facing child restraint systems; RFCRS, rear-facing child restraint systems.