Comparison of characteristics in patients with and without obstructive sleep apnoea syndrome
| AHI <10 | AHI ≥10 | p‐value | |
| Subjects n | 101 | 494 | |
| Age yrs | 50.2±1.2 | 56.7±0.5 | <0.0001 |
| BMI kg·m−2 | 27.4±0.4 | 30.6±0.2 | <0.0001 |
| Current smokers | 24 | 26 | 0.8 |
| Exsmokers | 45 | 46 | 0.8 |
| Alcohol >60 g·day−1 | 13 | 14 | 0.9 |
| Hypertension# | 29 | 45 | 0.003 |
| Hyperlipidaemia# | 10 | 21 | 0.008 |
| Known diabetes# | 10.9 | 18.8 | <0.0001 |
| Newly diagnosed diabetes | 3.0 | 11.3 | <0.0001 |
| IGT | 13.9 | 20.0 | <0.0001 |
Data are presented as mean±sem or per cent unless otherwise stated
AHI: apnoea/hypopnoea index
BMI: body mass index
IGT: impaired glucose tolerance
#: per cent of patients on medication for hypertension, hyperlipidaemia or diabetes