Table 1.
—Subject Characteristics
| Characteristic | Mix-OSAS (n = 36) | Pure-OSAS (n = 20) | Control Subjects (n = 10) | P Value |
| Age, y | 56.8±13.9 | 49.9±11.9 | 42.5±9.6a | <.01 |
| AHI, per h | 65.8±17.8 | 59.1±15.8 | 3.2±1.3a | <.001 |
| ESS | 11.2±4.8 | 11.7±7.0 | 8.0±3.8 | NS |
| BMI, kg/m2 | 28.2±3.8 | 27.7±4.0 | 24.4±3.7b | <.05 |
| Arrhythmia | 4/36 (11.1) | 0/20 (0) | 0/10 (0) | NS |
| Hypertension | 15/36 (41.7) | 7/20 (35) | 2/10 (20) | NS |
| Hyperlipidemia | 8/36 (22.2) | 3/20 (15) | 1/10 (10) | NS |
| Diabetes mellitus | 6/36 (16.7) | 2/20 (10) | 1/10 (10) | NS |
| Past history of cerebral infarction | 2/36 (5.6) | 0/20 (0) | 0/10 (0) | NS |
Data are shown as mean ± SD or No. (%). AHI = apnea-hypopnea index; ESS = Epworth Sleepiness Scale; mix-OSAS = mixed apnea-dominant obstructive sleep apnea syndrome; NS = not significant; pure-OSAS = obstructive apnea-dominant obstructive sleep apnea syndrome.
a
Significant difference from mix-OSAS, P<.01.
b
Significant difference from mix-OSAS, P<.05.