Table 2.
Data From Home Sleep Tests
| All Subjects (N = 601) | No. (%) |
|---|---|
| Without OSA | 150 (25) |
| With OSAa | 451 (75) |
| Mild OSA | 275 (46) |
| Moderate OSA | 116 (19) |
| Severe OSA | 60 (10) |
| Subjects With OSA (n = 451) | Mean ± SD |
|---|---|
| Total recorded time, h (total of 1-3 nights) | 11.4 ± 3.7 |
| Apnea Index (events/h) | 8.2 ± 10.4 |
| AHI 4% (events/h) | 15.5 ± 13.8 |
| RDI (events/h) | 30.6 ± 15.6 |
| Hypopnea (with 4% desaturation) Index (events/h) | 7.4 ± 5.8 |
| Hypopnea (with arousal alone) Index (events/h) | 15.0 ± 6.4 |
| Supine AHI 4% (events/h) | 22.5 ± 19.2 |
| Supine RDI (events/h) | 39.6 ± 20.8 |
| Mean oxygen saturation, % | 95 ± 1.25 |
| Time oxygen saturation < 90%, % | 3.3 ± 6 |
| Time snoring > 30 dB, % | 30 ±14 |
RDI = respiratory disturbance index.
a
OSA is defined as AHI 4% ≥ 5 events/h or when RDI ≥ 15 events/h. Mild OSA was defined as AHI 4% < 15 events/h when OSA was present, moderate OSA was defined as AHI 4% ≥ 15 events/h and < 30 events/h, and severe OSA was defined as AHI 4% ≥ 30 events/h.