Cause of injury: CT scan rate and result of CT scan for each causal category for 5574 children where their CT status was recorded
| Mechanism of injury | Total | Proportion who had CT (n) | Median age (years) (range) | CT result ; CT scans that were abnormal (%) (n) | ||||
|---|---|---|---|---|---|---|---|---|
| Missing (n) | Normal | ICI and/or depressed # | Simple # | Other | ||||
| Assault | 118 | 33.9% (40) | 13 (0–14.9) | 8 | 45% (18) | 25% (10) | 5% (2) | 5% (2) |
| Cycling | 267 | 43.8% (117) | 11.5 (0.8–14.8) | 9 | 70% (82) | 17.1% (20) | 4.3% (5) | 0.9% (1) |
| Fall from <1 m or <5 stairs | 1822 | 22% (402) | 2.1 (0–14.9) | 40 | 65.7% (264) | 11.2% (45) | 10.7% (43) | 2.5% (10) |
| Fall from >1 m or >5 stairs | 994 | 30.3% (301) | 2.1 (0–14.8) | 22 | 62.1% (187) | 18.6% (56) | 9% (27) | 3% (9) |
| Fall, height unknown | 673 | 30.2% (204) | 4.2 (0.1–14.9) | 21 | 65.7% (134) | 11.8% (24) | 10.3% (21) | 2% (4) |
| MVA (not pedestrian) | 88 | 54.5% (48) | 6.5 (0–14.9) | 2 | 56.3% (27) | 31% (15) | 4.2% (2) | 4.2% (2) |
| MVA: struck by car (child cyclist) | 35 | 51.4% (18) | 12.2 (1–14·9) | 0 | 44.4% (8) | 33.3% (6) | 22.2% (4) | 0 |
| MVA: struck by car (child pedestrian) | 273 | 55.8% (158) | 11.3 (0–14·9) | 22 | 49.4% (78) | 23.4% (37) | 8.9% (14) | 4.4% (7) |
| Impact injuries | 684 | 25.4% (174) | 3.7 (0.1–14.8) | 15 | 72.4% (126) | 10.3% (18) | 6.9% (12) | 1.7% (3) |
| Other recreational | 150 | 39.3% (59) | 8.7 (0.4–14·9) | 5 | 61% (36) | 15.3% (9) | 11.9% (7) | 3.4% (2) |
| Sport | 358 | 44.4% (159) | 12.4 (0–14.9) | 10 | 79.2% (126) | 8.8% (14) | 3.1% (5) | 2.5% (4) |
| Not known | 112 | 52% (54) | 1.4 (0–14.7) | 6 | 43.4% (23) | 28.3% (15) | 11.1% (6) | 7.5% (4) |
| Total | 5574 | 31.1% (1734) | 160 | 64% (1109) | (15.5%) 269 | (8.5%) 148 | (2.8%) 48 | |
A total of 126 cases were excluded as it was not known if CT scan was performed.
ICI, intracranial injury; MVA, motor vehicle accident.