Table 3 Proportion of patients that consumed an opioid stratified by model predictions across varying risk classification thresholds, tabulated with accompanying sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV)
Cut-off value | Low risk rate (%) | High risk rate (%) | Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) |
|---|---|---|---|---|---|---|
10 | 4.8 (n = 20/421) | 44.3 (n = 192/433) | 90.6 | 62.5 | 44.3 | 95.2 |
20 | 7.1 (n = 37/521) | 52.6 (n = 175/333) | 82.5 | 75.4 | 52.6 | 92.9 |
30 | 10.3 (n = 62/604) | 60.0 (n = 150/250) | 70.8 | 84.4 | 60 | 89.7 |
40 | 13.5 (n = 90/665) | 64.6 (n = 122/189) | 57.5 | 89.6 | 64.6 | 86.5 |
50 | 16.9 (n = 122/721) | 67.7 (n = 90/133) | 42.5 | 93.3 | 67.7 | 83.1 |
60 | 20.5 (n = 161/784) | 72.9 (n = 51/70) | 24.1 | 97 | 72.9 | 79.5 |
70 | 23.3 (n = 193/828) | 73.1 (n = 19/26) | 9 | 98.9 | 73.1 | 76.7 |
