Table 4 Performance at different score thresholds of tuberculosis prognostic point scoring
From: Development and validation of a prognostic score during tuberculosis treatment
Threshold | Risk of death | sensitivity | specificity | Positive predictive value | Negative predictive value |
|---|---|---|---|---|---|
46.5 (optimal) | 4.8% | 80.7 | 68.2 | 21.0 | 97.1 |
25 | 0.2% | 100 | 0.6 | 9.5 | 100 |
30 | 0.4% | 99.5 | 3.7 | 9.7 | 98.7 |
35 | 0.9% | 97.6 | 20.7 | 11.4 | 98.8 |
40 | 1.9% | 93.4 | 37.4 | 13.5 | 98.2 |
45 | 3.9% | 85.6 | 61.5 | 18.9 | 97.7 |
50 | 7.8% | 68.1 | 76.6 | 23.3 | 95.8 |
55 | 15.2% | 41.8 | 90.3 | 31.0 | 93.7 |
60 | 29.0% | 17.4 | 97.5 | 42.5 | 91.9 |
65 | 44.3% | 5.2 | 99.7 | 64.7 | 90.9 |
70 | 62.7% | 0.9 | 100 | 100 | 90.6 |