Predictive applicability of prediction model in validation cohort
| Sensitivity (95% CI) | Specificity (95% CI) | Positive predictive value (95% CI) | Negative predictive value (95% CI) | Positive likelihood ratio (95% CI) | Negative likelihood ratio (95% CI) | |
| 10% of population with highest risk of hospital admission | ||||||
| <70 years | 0.30 (0.28 to 0.32) | 0.96 (0.96 to 0.97) | 0.71 (0.68 to 0.74) | 0.81 (0.80 to 0.82) | 7.85 (6.81 to 9.04) | 0.73 (0.71 to 0.75) |
| ≥70 years | 0.19 (0.17 to 0.22) | 0.98 (0.96 to 0.98) | 0.87 (0.81 to 0.91) | 0.60 (0.58 to 0.62) | 8.23 (5.54 to 12.2) | 0.82 (0.80 to 0.85) |
| Triage category – <10 min | ||||||
| <70 years | 0.42 (0.40 to 0.44) | 0.84 (0.83 to 0.85) | 0.45 (0.43 to 0.47) | 0.82 (0.81 to 0.83) | 2.58 (2.39 to 2.78) | 0.69 (0.68 to 0.72) |
| ≥70 years | 0.46 (0.42 to 0.49) | 0.77 (0.75 to 0.80) | 0.61 (0.58 to 0.65) | 0.64 (0.61 to 0.67) | 1.99 (1.76 to 2.27) | 0.70 (0.66 to 0.75) |