Table 1.
The demographic and clinical characteristics of the entire group and REM-OSA and nREM-OSA patients.
| Total (n = 692) |
REM-OSA (n = 140) |
nREM-OSA (n = 552) |
p Value | |
|---|---|---|---|---|
| Patients, % | 100 | 20.2 | 79.8 | |
| Female (%) | 195 (28.2) | 75 (53.6) | 120 (21.7) | <0.001 |
| Age, year | 50.3 ± 13.4 | 48.7 ± 12.9 | 50.7 ± 13.4 | NS |
| BMI, kg/m2 | 25.6 ± 3.8 | 25.4 ± 4.1 | 25.6 ± 3.8 | NS |
| Heart disease (%) | 98 (14.2) | 15 (10.7) | 83 (15.0) | NS |
| Hypertension (%) | 227 (32.8) | 29 (20.7) | 198 (35.9) | 0.001 |
| Diabetes (%) | 92 (13.3) | 11 (7.1) | 82 (14.9) | 0.016 |
| Hyperlipidemia (%) | 104 (15.0) | 17 (12.1) | 87 (15.8) | NS |
| OSA severity | <0.001 | |||
| 5 ≤ AHI < 15 | 201 (29.0) | 97 (69.3) | 104 (18.8) | |
| 15 ≤ AHI < 30 | 196 (28.3) | 42 (30.0) | 154 (27.9) | |
| AHI ≥ 30 | 295 (42.6) | 1 (0.7) | 294 (53.2) | |
| K-ESS | 8.8 ± 4.7 | 8.7 ± 4.8 | 8.9 ± 4.7 | NS |
| K-PSQI | 8.1 ± 4.0 | 8.4 ± 3.9 | 8.0 ± 4.0 | NS |
| K-ISI | 12.1 ± 6.6 | 12.3 ± 6.9 | 12.0 ± 6.5 | NS |
| K-BDI2 | 13.2 ± 9.4 | 14.7 ± 9.5 | 12.9 ± 9.3 | NS |
Data are presented as mean ± SD or number (%). REM-OSA, REM sleep-dependent obstructive sleep apnea; nREM-OSA, REM sleep-nondependent obstructive sleep apnea; BMI, body mass index; OSA, obstructive sleep apnea; AHI, apnea–hypopnea index; K-ESS, Korean version of the Epworth Sleepiness Scale; K-PSQI, Korean version of the Pittsburgh Sleep Quality Index; K-ISI, Korean version of the Insomnia Severity Scale; K-BDI2, Korean version of the Beck Depression Inventory 2.