Table 5.
Total positive predictive value (PPV) by year
| No | Indicators | 2013 | 2014 | 2015 | 2016 | 2017 |
|---|---|---|---|---|---|---|
| 1 | No. alerts | 2075 | 4281 | 5321 | 39,624 | 126,555 |
| 2 | No. true alerts | 1561 | 3583 | 5046 | 28,476 | 120,637 |
| 3 | positive predictive value (PPV) | 75% | 84% | 95% | 72% | 95% |
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