Table 2. Prediction Parameters for the SA-SDQ, Berlin, and STOP-Bang Questionnaires.
| Berlin | STOP-Bang | SA-SDQ | Modified SA-SDQ | |
|---|---|---|---|---|
| AHI ≥5/hr (%) | ||||
| Sensitivity | 71.5 | 97.0 | 66.9 | 67.5 |
| Specificity | 32.0 | 18.6 | 65.0 | 66.0 |
| PPV | 84.3 | 85.9 | 90.7 | 76.4 |
| NPV | 18.0 | 54.6 | 27.8 | 55.2 |
| AHI ≥15/hr (%) | ||||
| Sensitivity | 75.5 | 98.0 | 73.1 | 74.0 |
| Specificity | 35.4 | 10.6 | 54.5 | 60.8 |
| PPV | 62.1 | 60.6 | 69.3 | 75.3 |
| NPV | 50.6 | 78.8 | 59.0 | 58.1 |
SA-SDQ, Sleep Apnea of Sleep Disorder Questionnaire; AHI, apnea-hypopnea index; PPV, positive predictive value; NPV, negative predictive value.