Estimates of the positive predictive value, sensitivity and CIs of the Health Protection Agency surveillance definition compared with the Centers for Disease Control and Prevention definition
| Result | Value (%) | CI |
|---|---|---|
| Sensitivity | 78.57 | (52.41 to 92.43) |
| Specificity | 99.91 | (99.48 to 99.98) |
| Positive predictive value | 91.67 | (64.61 to 98.51) |
| Negative predictive value | 99.73 | (99.20 to 99.91) |
| Diagnostic accuracy | 99.64 | (99.08 to 99.86) |