Table 2 Diagnostic accuracy of Berlin questionnaire in detecting OSA in patients with heart block
A) Distributions of the two risk groups with respect to AHI | Â | Â | Â | Â | Â | Â | Â | Â |
|---|---|---|---|---|---|---|---|---|
|  | Polysomnographic data | High-risk group (n = 56) | Low-risk group (n = 16) | |||||
|  | AHI < 5 | 5 | 4 | |||||
|  | 5 ≤ AHI < 15 | 17 | 8 | |||||
|  | 15 ≤ AHI < 30 | 14 | 2 | |||||
|  | AHI ≥ 30 | 20 | 2 | |||||
B) Ability of risk grouping with elevated AHI | ||||||||
| Â | Polysomnographic data | Sensitivity of BQ | Specificity of BQ | PPV | NPV | accuracy | + LR | - LR |
|  | AHI ≥ 5 | 81.00 % | 44.40 % | 91.07 % | 25.00 % | 76.39 % | 1.45 | 0.43 |
|  | AHI ≥ 15 | 89.47 % | 35.29 % | 60.71 % | 75.00 % | 77.78 % | 1.39 | 0.30 |
|  | AHI ≥ 30 | 91.00 % | 28.00 % | 35.71 % | 87.50 % | 47.22 % | 1.26 | 0.32 |