Demographics of the children’s head injury algorithm for the prediction of important clinical events study (n = 22 772)
| Clinical variable | Patients n (%) |
|---|---|
| GCS, Glasgow Coma Score; LOC, loss of consciousness. | |
| *134 (0.6%) patients had undocumented category. | |
| †64 (0.3%) patients had undocumented category. | |
| Age* | |
| 0–6 months | 852 (3.7) |
| 6 months–1 year | 1600 (7.0) |
| 1–2 years | 3777 (16.6) |
| 2–5 years | 6492 (28.5) |
| 5–11 years | 6577 (28.9) |
| 11–16 years | 3340 (14.7) |
| Sex† | |
| Male:female | 14767 (64.8):7941 (34.9) |
| LOC | |
| Any LOC | 1185 (5.2) |
| LOC >1 min | 524 (2.3) |
| LOC >5 min | 213 (0.9) |
| Amnesia | |
| Any amnesia | 720 (3.2) |
| Amnesia 1 min | 488 (2.1) |
| Amnesia >5 min | 288 (1.3) |
| Vomiting | |
| ⩾1 | 2498 (11) |
| ⩾2 | 1418 (6.2) |
| ⩾3 | 857 (3.8) |
| Headache | |
| Any headache | 4783 (21) |
| Severe headache | 95 (0.4) |
| GCS | |
| 15 | 21996 (96.6) |
| 14 | 229 (1.0) |
| 13 | 73 (0.3) |
| <13 | 193 (0.9) |
| Doctor unable to determine GCS | 281 (1.2) |