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Performance of nurses’ interpretation of the Canadian C-Spine Rule for 42 “clinically important” injury cases among 3633 patients
| Nurses’ result with rule | Cervical spine injury | No cervical spine injury |
|---|---|---|
| Positive | 37 | 1958 |
| Negative | 4 | 1535 |
| Indeterminate* | 1 | 98 |
| Sensitivity, % (95% CI) | 90.2 (76.0–95.0) | |
| Specificity, % (95% CI) | 43.9 (42.0–46.0) | |
| Negative predictive value, % | 99.7 | |
Note: CI = confidence interval.
Data for rule were incomplete.
