Table 2. The correlation analysis of apnea-hypopnea index with obstructive sleep apnea risk factors and symptoms.
*Data was analyzed by Pearson’s correlation coefficient test; ** Data was analyzed by Spearman’s correlation coefficient test; BMI: body mass index
Parameters | Apnea-Hypopnea Index | |
OSA patients (n=328) | ||
r | p-value | |
Lowest saturation(%)* | -0.63 | <0.001 |
Average saturation(%)* | -0.51 | <0.001 |
Time SpO2 under 89(%)* | 0.47 | <0.001 |
Age(years)* | 0.15 | 0.006 |
Weight(kg)* | 0.37 | <0.001 |
BMI* | 0.24 | <0.001 |
Gender | 0.17 | 0.002 |
Morning headache** | 0.19 | 0.001 |
Heart failure ** | -0.11 | 0.045 |
Hypertension** | 0.1 | 0.073 |
Exercise** | -0.03 | 0.550 |
Snoring ** | 0.06 | 0.262 |
Daytime sleepiness** | 0.07 | 0.218 |