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Inter-rater reliability of clinical variables
| Variable | Kappa (95% CI) | % agreement (95% CI) |
|---|---|---|
| Glasgow Coma Scale score | 0.65 (0.58–0.70) | 90.8 (84.9–96.2) |
| Evidence of trauma above clavicles | 0.93 (0.86–1.0) | 97.3 (92.2–99.4) |
| Vomiting | 0.65 (0.33–0.97) | 96.3 (90.9–99.0) |
| Headache | 0.80 (0.67–0.92) | 91.7 (84.9–96.2) |
| Loss of consciousness or amnesia | 0.84 (0.71–0.97) | 95.4 (89.6–98.5) |
| Drug or alcohol intoxication | 0.56 (0.00–0.71) | 97.3 (92.2–99.4) |
