Table 4 Positive and negative predictive values (PPV and NPV) for different cut points
Existing contact to PC | IPOS ≥ 1 item 3 or 4 | |||
|---|---|---|---|---|
PPV | NPV | PPV | NPV | |
Cut point 4 | 49.2% | 100% | 91.0% | 29.1% |
Cut point 5 | 56.7% | 100% | 95.9% | 37.0% |
Cut point 6 | 63.4% | 95.1% | 96.1% | 22.9% |