Table 1.
Baseline characteristics of all OSA patients and the general population cohort
| General population (n=762) | OSA (n=793) | P | |
|---|---|---|---|
| Age (years) | 57.0 ± 11.8 | 54.6 ± 10.7 | <0.0001 |
| BMI (kg/m2) | 27.9 ± 4.9 | 33.4 ± 5.6 | <0.0001 |
| Male (%) | 53.0 | 81.0 | <0.0001 |
| Smoking history | <0.0001 | ||
| Never smoker (%) | 39.2 | 27.3 | |
| Previous smoker (%) | 42.6 | 51.0 | |
| Current smoker (%) | 18.2 | 21.7 | |
| Hypertension (%) | 25.1 | 45.3 | <0.0001 |
| Cardiovascular disease (%) | 15.1 | 18.4 | 0.0781 |
| Diabetes (%) | 2.9 | 8.7 | <0.0001 |
| Epworth Sleepiness Scale (ESS) | 6.0 ± 3.9 | 11.7 ± 5.1 | <0.0001 |
| Early insomnia (%) | 14.1 | 15.3 | 0.5200 |
| Middle insomnia (%) | 17.3 | 34.8 | <0.0001 |
| Late insomnia (%) | — | 27.9 | — |
| Mental quality of life (MCS) | 51.4 ± 4.7 | 48.3 ± 10.9 | <0.0001 |
| Physical quality of life (PCS) | 50.9 ± 7.8 | 40.3 ± 10.9 | <0.0001 |
Values are given as mean ± standard deviation for continuous variables and percentages for nominal variables. Abbreviations: BMI, body mass index.