Comparison of the automated readmissions algorithm to the gold standard using the number of key events associated with multiple discharges (n=1107) as the denominator
| Gold standard | |||
| First admission | Readmission | Total | |
| Algorithm | |||
| First admission | 891 | 27 | 900 |
| Readmission | 16 | 173 | 207 |
| Total | 907 | 200 | 1107 |
| Estimate (95% CI) | |||
| Sensitivity | 86.5% (81.0% to 90.9%) | ||
| Specificity | 98.2% (97.2% to 99.0%) | ||
| PPV | 91.5% (86.6% to 95.1%) | ||
| NPV | 97.1% (95.7% to 98.1%) | ||
| Agreement | 96.1% (94.8% to 97.2%) | ||
NPV, negative predictive value; PPV, positive predictive value.