Table 1.
The demographic and polysomnographic information of the study population.
| Whole Population |
Non-OSA (AHI < 5) |
Mild OSA (5 ≤ AHI < 15) |
Moderate OSA (15 ≤ AHI < 30) |
Severe OSA (AHI ≥ 30) |
|
|---|---|---|---|---|---|
| Patients (N, (male%)) | 847 (53.8) | 131 (32.8) | 239 (45.2) | 204 (55.9) | 273 (70.0) |
| Age (years) | 55.8 (44.8–65.7) | 44.8 (31.4–58.3) | 54.4 (44.8–64.1) | 56.8 (48.2–66.5) | 59.0 (48.0–68.5) |
| BMI (kg/m2) | 34.0 (29.0–40.2) | 30.0 (25.0–35.3) | 33.6 (28.3–38.9) | 33.7 (30.3–39.9) | 36.2 (31.8–43.1) |
| AHI (events/h) | 18.0 (8.2–38.4) | 2.5 (1.3–3.6) | 9.8 (7.2–12.2) | 21.3 (17.9–25.0) | 56.0 (39.4–78.0) |
| Duration of analyzed period (h) | 7.3 (6.7–7.8) | 7.4 (6.8–7.8) | 7.3 (6.7–7.9) | 7.3 (6.7–7.8) | 7.3 (6.7–7.8) |
| Number of analyzed epochs (n) | 737,992 | 114,522 | 208,467 | 177,958 | 237,045 |
Values are presented as a number (% of the population) or as a median (interquartile range). BMI: body mass index, OSA: obstructive sleep apnea, AHI: apnea–hypopnea index.