Table 3. Comparison of demographic characteristics and social profiles between OSA patients and non-OSA patients.
| Characteristics | OSA (N=1,119, 30.7%) | Non-OSA (N=2,531, 69.3%) | P value |
|---|---|---|---|
| Region | 0.473 | ||
| Coastal | 689 (61.6) | 1,590 (62.8) | |
| Mountain | 430 (38.4) | 941 (37.2) | |
| Gender | <0.01 | ||
| Male | 497 (44.4) | 601 (23.7) | |
| Female | 622 (55.6) | 1,930 (76.3) | |
| Age (years), mean ± SD | 56.55±13.00 | 52.60±12.39 | <0.01 |
| BMI (kg/m2), mean ± SD | 24.84±3.52 | 23.06±3.08 | <0.01 |
| Neck circumference (cm), mean ± SD | 35.46±3.74 | 33.37±3.43 | <0.01 |
| Waist circumference (cm), mean ± SD | 86.27±10.49 | 80.13±9.50 | <0.01 |
| Marital status | 0.169 | ||
| Never married/divorced/widowed | 128 (11.4) | 331 (13.1) | |
| Married | 991 (88.6) | 2,200 (86.9) | |
| Educational level | 0.764 | ||
| Primary school and below | 263 (23.5) | 568 (22.4) | |
| Middle school | 265 (23.7) | 637 (25.2) | |
| High school | 319 (28.5) | 723 (28.6) | |
| College degree and above | 272 (24.3) | 603 (23.8) | |
| Smoking status | <0.01 | ||
| Never-smokers/former smokers | 932 (83.3) | 2,236 (88.3) | |
| Current smokers | 187 (16.7) | 295 (11.7) | |
| Alcohol use | <0.01 | ||
| Never-drinker/former drinkers | 895 (80.0) | 2,219 (87.7) | |
| Current drinkers | 224 (20.0) | 312 (12.3) | |
| Drinking tea | <0.01 | ||
| Never-drinkers/former drinkers | 239 (21.4) | 655 (25.9) | |
| Current drinkers | 880 (78.6) | 1,876 (74.1) | |
| Exercise | 0.002 | ||
| 5–7 d/week | 640 (57.2) | 1,277 (50.5) | |
| 3–4 d/week | 108 (9.7) | 283 (11.2) | |
| 1–2 d/week | 115 (10.3) | 298 (11.8) | |
| ≤3 d/month | 79 (7.1) | 249 (9.8) | |
| Never | 177 (15.8) | 424 (16.8) | |
| Hypertension | <0.01 | ||
| Yes | 294 (26.3) | 381 (15.1) | |
| No/unknown | 825 (73.7) | 2,150 (84.9) | |
| Diabetes | 0.097 | ||
| Yes | 109 (9.7) | 210 (8.3) | |
| No/unknown | 1,010 (90.3) | 2,321 (91.7) | |
| Dyslipidemia | <0.01 | ||
| Yes | 577 (51.6) | 1,101 (43.5) | |
| No | 542 (48.4) | 1,430 (56.5) | |
| Head and neck neoplasm | 0.209 | ||
| Yes | 21 (1.9) | 60 (2.4) | |
| No | 1,098 (98.1) | 2,471 (97.6) | |
| LDL-C (mmol/L), mean ± SD | 3.27±0.88 | 3.23±0.92 | 0.185 |
| HDL-C (mmol/L), mean ± SD | 1.33±0.38 | 1.45±0.39 | <0.01 |
| Total cholesterol (mmol/L), mean ± SD | 5.61±1.08 | 5.60±1.14 | 0.803 |
| Triglycerides (mmol/L), mean ± SD | 1.67±1.27 | 1.46±1.15 | <0.01 |
| Creatinine (mmol/L), mean ± SD | 75.31±23.41 | 67.85±18.53 | <0.01 |
| Lipoprotein (mmol/L), mean ± SD | 108.25±151.56 | 108.18±155.35 | 0.99 |
| Uric acid (μmol/L), mean ± SD | 388.11±97.83 | 351.51±89.09 | <0.01 |
| Blood oxygen parameters | |||
| Lowest SpO2 during sleep (%), mean ± SD | 82.22±5.34 | 89.34±3.56 | <0.01 |
| Mean SpO2 during sleep (%), mean ± SD | 95.52±2.03 | 96.96±1.07 | <0.01 |
| Maximum oxygen reduction time (s), mean ± SD | 45.23±11.30 | 34.83±9.58 | <0.01 |
OSA, obstructive sleep apnoea; SD, standard deviation; BMI, body mass index; LDL-C, low-density lipoprotein cholesterol; HDL-C, high-density lipoprotein cholesterol.