Table 1.
Clinical characteristics of the population and comparison between subjects with AHI ≥ 15 vs. AHI < 15.
| All Subjects (n = 3791) |
AHI ≥ 15 Subjects (n = 2733) |
AHI < 15 Subjects (n = 1058) |
p | |
|---|---|---|---|---|
| Age, years | 57.2 ± 13.6 | 58.9 ± 12.6 | 53.1 ± 15.04 | <0.001 |
| BMI, kg/m2 | 32.1 ± 9.2 | 33.4 ± 9.6 | 28.6 ± 7.2 | <0.001 |
| Male gender, n (%) | 2678 (70.6) | 2007 (73.4) | 671 (63.4) | <0.001 |
| Smokers, n (%) | 1158 (30.5) | 802 (29.3) | 356 (32.9) | 0.09 |
| FTND | 4.9 ± 2.8 | 5.1 ± 2.6 | 4.49 ± 2.9 | 0.007 |
| ESS | 9.6 ± 4.5 | 10.12 ± 4.5 | 8.35 ± 4.3 | <0.001 |
| AIS | 8.9 ± 5.5 | 9.2 ± 5.48 | 8.01 ± 5.4 | <0.001 |
| Obesity a, n (%) | 2343 (61.8) | 1941 (71) | 402 (38) | <0.001 |
| Arterial hypertension, n (%) | 1530 (40.4) | 1217 (44.5) | 313 (29.6) | <0.001 |
| Coronary heart disease | 400 (10.6) | 332 (12.1) | 68 (6.4) | <0.001 |
| Myocardial infarction, n (%) | 96 (2.5) | 82 (3) | 14 (1.3) | <0.001 |
| Stroke, n (%) | 107 (2.8) | 22 (2.1) | 85 (3.1) | 0.4 |
| Diabetes mellitus, n (%) | 488 (12.9) | 393 (14.4) | 95 (9) | <0.001 |
OSA: obstructive sleep apnea syndrome; BMI: body mass index; FTND: Fagerstrom Test for Nicotine Dependence; ESS: Epworth sleepiness scale; AIS: Athens Insomnia Scale; a: BMI > 30.