Baseline characteristics of the patients
| Characteristics | Primary care (n=101) | Sleep unit (n=109) | p Value |
|---|---|---|---|
| Men, n (%) | 75 (74) | 84 (77) | 0.6 |
| Age (years) | 56.2 (11) | 55.8 (11) | 0.8 |
| BMI (kg/m2) | 32.5 (6) | 34.6 (7.3) | 0.03 |
| Neck circumference (cm) | 42 (4) | 43 (4) | 0.09 |
| Waist circumference (cm) | 108.8 (13.3) | 111.3 (12.7) | 0.2 |
| Charlson Comorbidity Index | 1.3 (1.4) | 1.4 (1) | 0.66 |
| SBP (mm Hg) | 135 (19.7) | 134.6 (15.8) | 0.9 |
| DBP (mm Hg) | 81.3 (11.8) | 84.3 (11.1) | 0.06 |
| ESS score | 10.4 (6) | 10.6 (5.2) | 0.8 |
| AHI (per hour) | 50.8 (22.9) | 51.4 (24.4) | 0.8 |
| SaO2 drop ≥4% (events/h) | 31.6 (26.7) | 33.8 (28.7) | 0.7 |
Results are shown as mean (SD) unless stated otherwise.
The statistically significant p values (p values <0.05) are denoted in bold.
AHI, apnoea–hypopnea index; BMI, body mass index; DBP, diastolic blood pressure; ESS, Epworth Sleep Scale; SBP, systolic blood pressure.