Comparison of ROC cut off values for bronchodilator responsiveness (BDR)
| BDR | Non-wheezers(n = 58) | Wheezers(n = 84) | Sensitivity% (95% CI) | Specificity% (95% CI) |
|---|---|---|---|---|
| 6% | 56 | 34 | 59 (46 to 70) | 66 (55 to 74) |
| 9% | 72 | 29 | 50 (38 to 62) | 86 (78 to 92) |
| 12% | 82 | 20 | 35 (24 to 47) | 98 (92 to 99) |