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Table 5 Mean cortical thickness and effect size within regions of interest in bipolar subcategories vs controls

From: Cortical thinning in young psychosis and bipolar patients correlate with common neurocognitive deficits

  Mean thickness (mm) Effect size ( d)
BP1 BP2 BSD CON CON-BP1 CON-BP2 CON-BSD BP1-BP2 BP2-BSD BP1-BSD
Left hemisphere           
Intraparietal sulcus 2.04 2.08 2.08 2.02 −0.07 −0.29 −0.23 −0.18 0.00 −0.15
Angular gyrus (pos.) 2.78 2.78 2.76 2.82 0.09 0.11 0.14 0.02 0.04 0.06
Angular gyrus (ant.) 2.64 2.64 2.56 2.47 −0.47 −0.38 −0.20 0.01 0.20 0.25
Calcarine sulcus 1.88 1.83 1.83 1.92 0.13 0.34 0.37 0.20 0.01 0.23
Right hemisphere           
Superior temporal gyrus 2.89 2.83 2.82 2.88 −0.02 0.19 0.26 0.17 0.05 0.23
Supramarginal gyrus 2.56 2.60 2.71 2.58 0.08 −0.07 −0.51 −0.15 −0.43 −0.58
Precuneus 2.47 2.59 2.61 2.61 0.50 0.09 0.01 −0.39 −0.08 −0.50
Precentral gyrus 2.33 2.37 2.37 2.33 −0.02 −0.13 −0.15 −0.11 −0.02 −0.14
Fusiform 3.56 3.58 3.58 3.71 0.33 0.31 0.30 −0.04 0.00 −0.04
Parieto-occipical sulcus 2.80 2.98 2.94 2.96 0.29 −0.05 0.05 −0.34 0.09 −0.23
  1. Age-adjusted mean cortical thicknesses for ROIs were obtained from FreeSurfer, and Cohen's d examined the difference between people with bipolar I (n = 40), bipolar II (n = 29) or bipolar spectrum disorder (n = 23) and controls (n = 49). Items of small- (d>0.2) or medium-effect size (d>0.5) are italicized. ant., anterior; BP1, bipolar I disorder; BP2, bipolar II disorder; BSD, bipolar spectrum disorder; CON, controls; pos., posterior.