Intraclass correlation coefficient (ICC) matrix demonstrating robust correlations across raters both at the University of Kentucky (two raters) and across 5 other MarkVCID consortium sites for WMH A) Growth and B) Regression. UKY1, UKY2, University of Kentucky, raters 1 and 2; RUSH, Rush University Medical Center; JHU, Johns Hopkins University School of Medicine; USC, University of South California; UTHSCSA, University of Texas Health San Antonio; UCD, University of California, Davis.