Clinical characteristics of the study population
| Whole study group (n = 60) | Patients available at follow up | ||
|---|---|---|---|
| Treated (n = 27) | Untreated (n = 9) | ||
| *Values are mean (SD). | |||
| Sex (M:F) | 48:12 | 19:8 | 9:0 |
| Age (years)* | 55 (10) | 56 (11) | 54 (11) |
| Body mass index (kg/m2)* | 32 (7) | 33 (3) | 30 (4) |
| Neck circumference (cm)* | 41 (4) | 41 (3) | 42 (4) |
| Method of diagnosis | |||
| Polysomnography | 32 (53%) | 13 (48%) | 6 (67%) |
| Home oximetry | 28 (47%) | 14 (52%) | 3 (33%) |
| Apnoea/hypopnea index* | 29 (17) | 28 (16) | 30 (20) |
| Epworth score* | 14/24 (5) | 14/24 (6) | 14/24 (5) |
| Duration of symptoms (years)* | 8.5 (7.1) | 7.2 (5.3) | 11.2 (5.3) |
| Living with spouse | 50 (83%) | 20 (74%) | 8 (89%) |
| Level of education (years)* | 14 (5) | 16 (6) | 13 (4) |
| At work | 41 (68%) | 19 (70%) | 5 (56%) |