Univariate analyses of the dependence of Ln (WML-ILL volume) upon age and sex, for both the whole group (including all the subjects with mild, moderate, severe, or critical aortic stenosis), and the subgroup of severe or critical aortic stenosis subjects.(A) and (B) are the analyses of age and sex (F - female, M - male) for the whole group, (C) and (D) are the same analyses for the subgroup. The bars represent mean ± SE (standard error). (* Indicates a significant difference between groups [p < 0.05].)