The screening accuracy of the TRACK scores at the baseline visit
| Cut-off points | OR | Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) | False-positive rate (%) | Accuracy (%) |
| 65 | 8.74 | 18.6 | 97.5 | 65.5 | 82.1 | 34.5 | 67.0 |
| 70 | 7.65 | 29.0 | 94.9 | 68.0 | 78.3 | 32.0 | 69.5 |
| 75 | 6.82 | 43.6 | 89.9 | 71.7 | 73.0 | 28.3 | 72.0 |
| 80 | 8.14 | 62.1 | 83.3 | 77.7 | 77.8 | 22.3 | 75.1 |
| 85 | 11.33 | 81.5 | 72.1 | 86.1 | 64.7 | 13.9 | 75.7 |
| 90 | 8.63 | 87.9 | 54.3 | 87.7 | 54.8 | 12.3 | 67.3 |
NPV, negative predictive value; PPV, positive predictive value; TRACK, Test for Respiratory and Asthma Control in Kids.