(a) Plaque burden, stenosis, and composition were measured in human coronary arteries by intravascular ultrasound (IVUS) and virtual histology (VH). (b) Correlation plot of plaque burden with CXCR4 expression on B-1 cells (log(MFI CXCR4)) in 50 subjects. (c) Correlation plot of maximum stenosis with CXCR4 expression on B-1 cells (log(MFI CXCR4)) in 50 subjects. (d) Associations between CXCR4 expression on peripheral human B-1 cells and plaque burden, stenosis, plaque characteristics, or plasma cholesterol levels in 50 subjects. Data presented as correlation coefficient (r) and False Discovery Rate (FDR)-corrected statistical significance (p). *P<0.05 for FDR-corrected p-values.