Presenting characteristic | ||||
---|---|---|---|---|
Nil | Nausea only | Single vomit | Multiple vomits | |
All patients combined | 1 | 0.78 (0.28–2.21) | 4.31 (2.65–7.02) | 3.72 (1.55–8.92) |
Age group: | ||||
Adults | 1 | 0.69 (0.16–3.00) | 5.59 (2.80–11.2) | 3.96 (0.89–17.7) |
Children | 1 | 0.48 (0.06–3.70) | 3.61 (1.80–7.23) | 3.69 (1.24–11.0) |
Post-traumatic amnesia: | ||||
Present | 1 | 0.85 (0.31–2.30) | 4.44 (2.83–6.98) | 3.28 (0.90–12.0) |
Absent | 1 | 1.08 (0.39–3.02) | 3.31 (1.85–5.92) | 2.34 (0.62–8.83) |
Consciousness: | ||||
Alert | 1 | 0.64 (0.15–2.73) | 2.24 (0.93–5.39) | 3.15 (0.72–13.7) |
Altered | 1 | 0.53 (0.12–2.40) | 2.01 (1.03–3.92) | 1.13 (0.36–3.49) |
Speed of impact: | ||||
Low | 1 | 3-151 | 5.58 (0.55–56.6) | 3-151 |
Medium | 1 | 0.53 (0.12–2.27) | 2.00 (0.91–4.42) | 1.49 (0.34–6.48) |
High | 1 | 0.77 (0.17–3.48) | 5.62 (2.68–11.8) | 4.84 (1.43–16.4) |
↵3-151 Too few skull fractures to estimate relative risk.
Values are relative risk (95% CI).