Table 3

Multivariable predictive model
Exposure variables Low and middle income countries
Adjusted odds ratio (95% CI1), z-score p-value2
Age3 1.10 (1.06, 1.15), 5.19 <0.001
Glasgow Coma Scale4 1.21 (1.18, 1.23), 17.46 <0.001
One or both pupils unreactive 1.81 (1.44, 2.26), 5.14 <0.001
Major extracranial injury 0.78 (0.68, 0.90), -3.35 0.001
Time since injury5 1.38 (1.27, 1.48), 8.19 <0.001
   c-index: 0.71

1 Ninety-five percent confidence interval.

2 Wald Test p-value for association between variables and outcome.

3 OR for a 10-year increase in age from a baseline group of <16.

4 OR for a one-unit decrease in GCS from a baseline of 14.

5 OR for a categorical increase in hours of injury until randomization (baseline <1 hr, 1- ≤3 hrs, >3 hrs).

Subaiya et al.

Subaiya et al. BMC Emergency Medicine 2012 12:17   doi:10.1186/1471-227X-12-17

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