Characteristics of the studied population
| Total (n=500) | Low risk OSA (n=242) | High risk OSA (n=258) | p Value | |
|---|---|---|---|---|
| Age (years) | 59.1±13.2 | 58.6±15.5 | 59.5±11.9 | 0.49 |
| Male (%) | 250 (50) | 124 (51) | 126 (49) | 0.65 |
| Caucasians (%) | 347 (70) | 169 (70) | 178 (69) | 0.84 |
| BMI (kg/m2) | 28.2±5.3 | 26.7±4.8 | 29.6±5.4 | <0.001 |
| Waist circumference (cm) | 98.7±15.2 | 95.4±14.2 | 101.8±15.5 | <0.001 |
| Neck circumference (cm) | 38.8±4.2 | 38.0±3.9 | 39.6±4.4 | <0.001 |
| Hypertension (%) | 406 (81) | 170 (71) | 236 (91) | 0.0001 |
| Diabetes mellitus (%) | 176 (35) | 62 (25) | 114 (44) | 0.0001 |
| Overweight (%) | 178 (36) | 82 (33) | 96 (37) | 0.45 |
| Obesity (%) | 225 (45) | 83 (34) | 142 (55) | 0.0001 |
| Sleep data | ||||
| Epworth Sleepiness Scale | 8.8±5.1 | 6.7±4.2 | 10.7±5.1 | <0.001 |
| Excessive daytime sleepiness (%) | 189 (38) | 52 (21) | 137 (53) | 0.0001 |
Values are mean (±SD) or median (IQR) or percentage.
p Values shown in bold are significantly significant.
BMI, body mass index; OSA, obstructive sleep apnoea.