Table 3.
Demographic data and mESS scores in patients and in normal subjects
| OSA (n = 119) | |||||
|---|---|---|---|---|---|
| All patients (n = 122) | Mild (5 ≤ AHI < 15 h−1, n = 25) | Moderate (15 ≤ AHI < 30 h−1, n = 20) | Severe (AHI ≥ 30 h−1, n = 74) | Normal subjects n = 117 | |
| Age, years | 46.7 ± 11.9a | 44.3 ± 9.7 | 45.2 ± 14.3 | 47.8 ± 11.9 | 44.2 ± 9.3 |
| Gender, female/male | 17/105 | 5/20 | 4/16 | 7/66 | 27/117 |
| BMI | 26.1 ± 3.7b | 24.6 ± 3.4 | 25.4 ± 2.7 | 27.0 ± 3.5 | 20.9 ± 2.4 |
| AHI | 36.0 ± 20.1 | 10.9 ± 3.0 | 20.8 ± 3.4 | 50.0 ± 11.8 | |
| SpO2 < 90, % | 16.2 ± 19.3 | 0.6 ± 0.9 | 3.8 ± 6.4 | 25.5 ± 19.7 | |
| mESSc | 11.0 ± 5.0b | 5.7 ± 2.6 | 8.8 ± 3.5 | 13.8 ± 3.8 | 5.7 ± 2.2 |
Data expressed as mean ± SD
OSA = Obstructive sleep apnea, confirmed by sleep study; AHI = apnea and hypopnea index; SpO2 < 90 = percentage of sleep time with oxygen saturation below 90%
a P > 0.05, vs. normal subjects, by ANOVA
b P < 0.01, vs. normal subjects, by ANOVA
cDifferences in the mESS scores in patients with mild, moderate, and severe OSA are statistically significant; P < 0.01, by ANOVA and post hoc Scheffé test