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. 2024 Nov 19;16(11):e74055. doi: 10.7759/cureus.74055

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