Comparison of reported statistics for CATCH, CHALICE, and PECARN rules
| Decision Rule | Sensitivity (95% CI) | Specificity (95% CI) | Reference |
|---|---|---|---|
| CATCH | 98.1% (94.6%–99.4%) | 50.1% (48.5%–51.7%) | Osmond et al 201019 |
| CHALICE | 98% (96%–100%) | 87% (86%–87%) | Dunning et al 200620 |
| PECARN | 100% (84%–100%) | 62% (59%–66%) | Babl et al 201415 |
| NPV = 99.95%–100% | Kuppermann et al 200916 Mihindu et al 201417 | ||
Note:—NPV indicates negative predictive value.