Table 1.
Demographic characteristics of the total OSA patients and the patients with different severities of EDS.
| Total | Non-EDS | Mild to moderate EDS | Severe EDS | F/χ 2 | p | |
|---|---|---|---|---|---|---|
| Number of cases | 874 | 582 | 227 | 65 | — | — |
| Gender (male : female) | 739 : 135 | 482 : 100 | 203 : 24 | 54 : 11 | 5.580 | 0.061 |
| Age | 45.4 ± 11.6 | 45.2 ± 12.0 | 44.5 ± 10.2 | 49.5 ± 11.3a,b | 4.757 | 0.009 |
| BMI (kg/m2) | 27.2 ± 3.4 | 26.8 ± 3.3 | 27.9 ± 3.3c | 29.1 ± 3.6a,b | 20.462 | <0.0001 |
| NC (cm) | 38.4 ± 3.8 | 38.1 ± 4.1 | 38.9 ± 3.2c | 39.7 ± 3.4a | 7.347 | 0.001 |
| WC (cm) | 97.8 ± 9.5 | 96.1 ± 9.0 | 101.0 ± 9.5c | 102.1 ± 9.9a | 31.003 | <0.0001 |
| Awake SpO2 | 96.6 ± 0.9 | 96.6 ± 0.9 | 96.5 ± 0.9 | 96.4 ± 0.8 | 2.338 | 0.097 |
| ESS score | 8.3 ± 5.0 | 5.4 ± 2.6 | 12.8 ± 1.6c | 19.0 ± 2.0a,b | 1499.010 | <0.0001 |
Data are presented as the number of cases or mean ± SD. aComparisons between non-EDS versus severe EDS groups (p < 0.05); bcomparisons between mild to moderate EDS versus severe EDS groups (p < 0.05); ccomparisons between non-EDS versus mild to moderate EDS groups (p < 0.05). EDS: excessive daytime sleepiness; BMI: body mass index; NC: neck circumference; WC: waist circumference; ESS: Epworth Sleepiness Scale.