Table 3

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 admissionReadmissionTotal
 First admission89127900
Estimate (95% CI)
Sensitivity86.5% (81.0% to 90.9%)
Specificity98.2% (97.2% to 99.0%)
PPV91.5% (86.6% to 95.1%)
NPV97.1% (95.7% to 98.1%)
Agreement96.1% (94.8% to 97.2%)
  • NPV, negative predictive value; PPV, positive predictive value.