Table 3

Relative risk of skull fracture with differing severity of post-traumatic vomiting (PVT)

Presenting characteristic
NilNausea onlySingle vomitMultiple vomits
All patients combined10.78 (0.28–2.21)4.31 (2.65–7.02)3.72 (1.55–8.92)
Age group:
 Adults10.69 (0.16–3.00)5.59 (2.80–11.2)3.96 (0.89–17.7)
 Children10.48 (0.06–3.70)3.61 (1.80–7.23)3.69 (1.24–11.0)
Post-traumatic amnesia:
 Present10.85 (0.31–2.30)4.44 (2.83–6.98)3.28 (0.90–12.0)
 Absent11.08 (0.39–3.02)3.31 (1.85–5.92)2.34 (0.62–8.83)
Consciousness:
 Alert10.64 (0.15–2.73)2.24 (0.93–5.39)3.15 (0.72–13.7)
 Altered10.53 (0.12–2.40)2.01 (1.03–3.92)1.13 (0.36–3.49)
Speed of impact:
 Low1 3-151 5.58 (0.55–56.6) 3-151
 Medium10.53 (0.12–2.27)2.00 (0.91–4.42)1.49 (0.34–6.48)
 High10.77 (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).