Skip to main content

Table 2 Summary of the relationship between change in the accuracy or time score and each regional CVR change

From: Increased cerebrovascular reactivity in selected brain regions after extracranial-intracranial bypass improves the speed and accuracy of visual cancellation in patients with severe steno-occlusive disease: a preliminary study

  Change in accuracy score Change in time score
Lt EC-IC bypass Rt EC-IC bypass Lt EC-IC bypass Rt EC-IC bypass
Number (%) with negative ρ (negative correlation) 4 (6.5%) 2 (3.2%) 49 (79.0%) 6 (9.7%)
Number (%) with positive ρ (positive correlation) 58 (93.5%) 60 (96.8%) 13 (21.0%) 56 (90.3%)
Number of p-value less than 0.1 10 (16.1%) 13 (21.0%) 1 (1.6%) 19 (30.6%)
Number of p-value of 0.05 or less 5 (8.1%) 6 (9.7%) 1 (1.6%) 9 (14.5%)
  1. A summary of bivariate analyses of the time or accuracy scores and CVR changes in each brain region (62 brain regions in total) is shown. The number (% of 62 total brain regions) of Spearman’s rank correlation (ρ) values that are positive (or negative) and the number (% of 62 total brain regions) that have p-values less than 0.1 (or 0.05 or less) are shown separately on the surgical side. See the supplementary Table for all bivariate results