Figure 1

Pearson and Spearman correlation matrices at baseline.
Values of Pearson r or Spearman ρ coefficients are given in the correspondent glyph. Pearson correlation matrix (left panel); Spearman correlation matrix (right panel). The glyphs are marked with colour only if they show a correlation at P < 0.05 level. Blue colour represents positive correlation whereas red represents negative correlation. Numerical p-values are shown in Supplementary Table S1. Abbreviations and units are given in the supplementary material.