Clinical, anthropometric and polygraphic data for the whole group and for women and men
| Total | Women | Men | p-value | |
| Subjects n | 801 | 462 | 339 | |
| BMI kg·cm−2 | 25.5±3.8 | 25.2±4.2 | 26.0±3.0 | 0.006 |
| Neck circumference cm | 37.1±3.9 | 34.6±2.6 | 40.5±2.8 | <0.001 |
| Hypertension % | 45.1 | 42.2 | 44.9 | 0.05 |
| Diabetes % | 2.5 | 1.3 | 4.3 | 0.008 |
| Dyslipidaemia % | 35 | 38 | 30 | <0.001 |
| Alcohol % | 46 | 32 | 61 | <0.001 |
| Smoking % | 26 | 12 | 66 | <0.001 |
| SBP 24-h mmHg | 119.1±14.3 | 116.6±13.7 | 122.3±14.3 | <0.001 |
| DBP 24-h mmHg | 76.0±7.9 | 74.2±7.6 | 78.6±7.8 | <0.001 |
| SBP diurnal mmHg | 123.1±14.8 | 121.3±14.8 | 125.6 ±14.5 | <0.001 |
| DBP diurnal mmHg | 77.1±8.2 | 75.6±8.2 | 79.1±7.8 | <0.001 |
| SBP nocturnal mmHg | 106.9±15.5 | 105.6±16.3 | 108.8±14.2 | 0.003 |
| DBP nocturnal mmHg | 66.4±9.2 | 64.6±9.1 | 68.7±8.8 | <0.001 |
| BRS ms·mmHg−1 | 6.9±3.5 | 7.0±3.5 | 6.7±3.6 | ns |
| AHI events·h−1 | 20.4±14.7 | 16.7±12.4 | 25.6±16.4 | <0.001 |
| ODI events·h−1 | 9.3±9.4 | 7.4±7.7 | 12.1±10.8 | <0.001 |
| Mean SpO2 % | 95.3±1.7 | 95.5±1.6 | 95.1±1.9 | 0.002 |
| Minimal SpO2 % | 89.7±4.1 | 90.3±3.6 | 89.0±4.0 | <0.001 |
| Time with SpO2 <90% % | 1.9±5.7 | 1.4±5.0 | 2.6±6.6 | 0.01 |
| Respiratory AAI events·h−1 | 15.6±10.5 | 13.7±8.0 | 18.3±12.2 | <0.001 |
Data are presented as mean±sd, unless otherwise stated. BMI: body mass index; SBP: systolic blood pressure; DBP: diastolic blood pressure; BRS: baroreceptor sensitivity; AHI: apnoea–hypopnoea index; ODI: oxygen desaturation index; SpO2: oxygen saturation measured by pulse oximetry; AAI: autonomic arousal index; ns: nonsignificant. Significance was determined by t-test or Chi-squared difference between women and men.