Fig. 4

Heatmap showing significant correlations (P < 0.05) between variables in the control (HC) group. In the HC group, the relationships between variables such as age, carotid intima-media thickness (CIMT), and lipid profile showed fewer significant correlations compared to the FH group. The negative correlation between the CIMT and HDL cholesterol is notable. The correlation coefficient (r) and significance level (P) are indicated in each cell