Fig. 1: Spearman correlation analysis presented as an undirected network graph.

Orange lines represent negative correlations, blue lines represent positive correlations, and the width of the line is proportional to the absolute value of Spearman coefficient, thick lines here represent │0.5│ ≤ rho ≤ │0.8│ while thin lines here represent │0.2│ ≤ rho ≤ │0.3│. Only significant correlations at p < 0.05 with absolute coefficient >0.2 were presented.