Table 3

Correlation between topographic distribution of microbleeds and underlying medical history significant for either CABG, valve replacement or CAA

Amyloid (n=41)CABG (n=21)Valve (n=37)P value*CABG-Amyloid†Valve-Amyloid†Valve-CABG†
Total CMB18.0±25.93.5±2.34.1±4.1<0.01<0.01<0.010.99
Cortical15.5±20.42.0±1.02.7±2.7<0.01<0.01<0.010.98
SWM1.5±3.00.9±0.90.8±1.30.740.870.740.99
Ratio‡0.05±0.080.26±0.280.18±0.17<0.01<0.010.010.25
  • *P value calculated using ANOVA.

  • †P value calculated using Tukey honest significant difference test.

  • ‡Ratio=SWM/SWM+cortical microbleeds.

  • ANOVA, analysis of variance; CAA, cerebral amyloid angiopathy; CABG, coronary artery bypass grafting; CMB, cerebral microbleeds; SWM, subcortical white matter.