Research on oxygen saturation based on statistical analyses

We propose indicators to measure blood oxygen saturation: 1. Mean, which reflects the central tendency of blood oxygen saturation; 2. Standard deviation, which reflects the dispersion of SpO₂; 3. Hurst exponent, which indicates whether the time series is continuous or anti-continuous. Participants with nearly the same physiological characteristics except age are selected from all participants, and they are divided into female and male groups for visual analysis. We speculate that the SpO₂ series model had a certain relationship with age. Subsequently, the quantitative method is used to conduct a stepwise regression analysis by using age, BMI, gender and smoking. Finally, we find that the mean of SpO₂ is related to age.