The relationship between BI and stigma
The non-linear relationship between BI and stigma was observed by smoothed curve fitting, where the red solid line indicates the smoothed curve fitting between the variables and the blue dashed line indicates the 95% confidence interval of the fitting, where it can be observed that there are different decreasing trends of the stigma curve for patients with different independent levels of daily living self-care (Fig. 
The relationship between BI and stigma