Fig. 3

Correlation Matrix of Key Predictive Variables(Correlation matrix displaying the pairwise Pearson correlations among variables used in the predictive modeling. Color intensity and circle size represent the strength and direction of correlation. Blue indicates positive and red indicates negative correlations. Statistical significance is marked with asterisks (*p < 0.05; **p < 0.01; ***p < 0.001). The figure includes both continuous and binary variables, the latter encoded as 0 and 1 for analysis).