Table 1.
Demographics and clinical characteristics of the OSA and control groups.
| OSA (n = 132) | Control (n = 49) | p | |
|---|---|---|---|
| Age (years) | 53/44–60/ | 47/29–59/ | 0.03 |
| Gender (male%) | 70 | 33 | <0.01 |
| BMI (kg/m2) | 26.8/24.8–28.6/ | 23.9/20.8–26.9/ | <0.01 |
| Smoking (ever%) | 39 | 4 | <0.01 |
| Cigarette pack years | 0/0–11/ | 0/0–0/ | <0.01 |
| Hypertension (%) | 55 | 35 | 0.03 |
| Cardiovascular and cerebrovascular disease (%) | 23 | 4 | <0.01 |
| Arrhythmia (%) | 22 | 18 | 0.75 |
| Total cholesterol (mmol/L) | 5.0/4.3–6.1/ | 5.2/4.7–5.9/ | 0.28 |
| HDL-C (mmol/L) | 1.1/1.0–1.4/ | 1.6/1.4–2.0/ | <0.01 |
| LDL-C (mmol/L) | 2.9/2.3–3.8/ | 3.0/2.6–3.7/ | 0.85 |
| TG (mmol/L) | 1.7/1.2–2.0/ | 1.2/0.9–1.5/ | <0.01 |
| Glucose (mmol/L) | 4.8/4.4–5.3/ | 4.7/4.2–4.9/ | 0.02 |
| TyG | 8.72 ± 0.49 | 8.37 ± 0.40 | <0.01 |
| ESS | 8.0/5.0–10.0/ | 6.0/4.0–9.0/ | 0.07 |
| TST (min) | 420/367–453/ | 388/354–431/ | 0.11 |
| SPT (min) | 466/430–505/ | 425/398–463/ | <0.01 |
| Sleep% (%) | 92/82–96/ | 94/84–99/ | 0.12 |
| REM% (%) | 15/12–19/ | 14/10–19/ | 0.11 |
| AHI (1/h) | 24.1/12.2–40.7/ | 1.9/1.2–2.8/ | <0.01 |
| ODI (1/h) | 21.4/9.9–35.4/ | 0.9/0.2–1.7/ | <0.01 |
| TST90% (%) | 3.4/0.2–13.2/ | 0.0/0.0–0.1/ | <0.01 |
| MinSatO2 (%) | 85/81–88/ | 91/89–93/ | <0.01 |
AHI—apnoea–hypopnoea index, BMI—body mass index, ESS—Epworth Sleepiness Scale, HDL-C—high-density lipoprotein-cholesterol, LDL-C—low-density lipoprotein-cholesterol, MinSatO2—minimal oxygen saturation, ODI—oxygen desaturation index, OSA—obstructive sleep apnoea, REM%—percentage of total sleep time spent in rapid eye movement sleep, Sleep%—sleep efficiency, SPT—sleep period time, TG—triglyceride, TST—total sleep time, TST90%—percentage of total sleep time spent with oxygen saturation below 90%, TyG—triglyceride-glucose index. Data are expressed as mean ± standard deviation or median /interquartile range/.