Table 1.
Sample characteristics at baseline
| n (%) | |
|---|---|
| Sex | |
| Men | 52 (91.2) |
| Women | 5 (8.8) |
| Age, years, mean (SD) | 68.8 (8.0) |
| BMI, kg/m2, mean (SD) | 28.5 (5.4) |
| BMI | |
| Normal | 14 (25.0) |
| Overweight | 18 (31.6) |
| Obese | 25 (43.9) |
| AHI, number of apnea-hypopnea/hour, mean (SD) | 8.5 (4.6) |
| S1, minutes, mean (SD) | 6.7 (4.3) |
| S2, minutes, mean (SD) | 62.2 (17.1) |
| S3+S4, minutes, mean (SD) | 14.4 (13.6) |
| REM, minutes, mean (SD) | 12.3 (7.6) |
| SAT <90%, mean (SD) | 71.7 (24) |
| SAT <80%, median (IQR) | 4.1 (1.3–8.9) |
| Mean saturation, mean (SD) | 86.2 (2.7) |
| Min saturation, mean (SD) | 74.7 (6.1) |
| OD, number of oxygen desaturation/hour, median (IQR) | 10 (4.8–17) |
Abbreviations: AHI, Apnea-Hypopnea Index; BMI, body mass index; IQR, interquartile range; OD, oxygen desaturation; REM, rapid eye movement; SAT, saturation.