Sensitivity and specificity of the off line automated analysis algorithm at a variety of AHI and RDI OSA diagnostic criterion values
| PSG-AHI criterion (/h) | RDI case designation criteria (/h) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sensitivity | Specificity | ||||||||||
| ⩾5 | ⩾10 | ⩾15 | ⩾20 | ⩾30 | ⩾5 | ⩾10 | ⩾15 | ⩾20 | ⩾30 | ||
| ⩾10 | 100 | 97 | 90 | 76 | 51 | 43 | 80 | 96 | 98 | 100 | |
| ⩾15 | 100 | 99 | 98 | 88 | 61 | 34 | 67 | 88 | 96 | 100 | |
| ⩾20 | 100 | 100 | 100 | 97 | 76 | 28 | 55 | 73 | 85 | 97 | |
| ⩾30 | 100 | 100 | 100 | 100 | 95 | 24 | 47 | 62 | 74 | 93 | |
PSG = polysomnography; AHI = apnoea hypopnoea index; OSA = obstructive sleep apnoea; RDI = respiratory disturbance index.