Characteristics of patients in development and validation groups
| Development group (n=79) | Validation group (n=78) | p Value | |
| Age, years | 55 (45–62) | 50 (40–58) | 0.015 |
| Men, n (%) | 42 (53%) | 34 (44%) | 0.230 |
| BMI, kg/m2 | 31.7 (28.8–36.1) | 29.3 (25.5–33.8) | 0.014 |
| Neck circumference, cm | 40.3±4.2 | 38.6±4.1 | 0.011 |
| Waist circumference, cm | 106.7±13.9 | 101.3±15.8 | 0.024 |
| Hip circumference, cm | 113 (105.5–121) | 106.5 (100–117) | 0.004 |
| ESS | 8 (4–10) | 7 (5–10) | 0.997 |
| High risk, n (%) | 65 (82%) | 61 (78%) | 0.521 |
| Total AHI, /h | 20.9 (13.1–41.3) | 16.5 (9.6–28.2) | 0.018 |
| AHI ≥30/h, n (%) | 31 (39%) | 16 (21%) | 0.010 |
Data are presented as mean±SD, median (IQR) or n (%).
AHI, apnoea-hypopnoea index; BMI, body mass index; ESS, Epworth sleepiness scale.