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Table 6 DTI measures of white matter tracts in HIV positive patients with history of psychostimulant use

From: White matter deficits assessed by diffusion tensor imaging and cognitive dysfunction in psychostimulant users with comorbid human immunodeficiency virus infection

  Controls (n = 22) Patients (n = 20) Effect size (d) and p value
Genu of CC
 FA 0.3838 ± 0.0254 0.3517 ± 0.0289 1.184; 0.0001*
 MD 0.910 ± 0.054 0.951 ± 0.039 −0.864; 0.008*
 AD 1.283 ± 0.071 1.301 ± 0.047 −0.296; 0.324
 RD 0.723 ± 0.052 0.775 ± 0.046 −1.056; 0.002*
Right ALIC
 FA 0.3555 ± 0.0229 0.3391 ± 0.0233 0.710; 0.027*
 MD 0.907 ± 0.064 0.953 ± 0.060 −0.740; 0.022*
 AD 1.245 ± 0.071 1.288 ± 0.061 −0.647; 0.044*
 RD 0.737 ± 0.064 0.785 ± 0.063 −0.756; 0.020*
Left ALIC
 FA 0.3798 ± 0.0307 0.3539 ± 0.0190 1.002; 0.002*
 MD 0.857 ± 0.055 0.914 ± 0.042 −1.157; 0.001*
 AD 1.208 ± 0.061 1.254 ± 0.049 −0.827; 0.011*
 RD 0.681 ± 0.058 0.745 ± 0.042 −1.254; 0.0001*
AC
 FA 0.3782 ± 0.0499 0.3509 ± 0.0332 0.638; 0.042*
 MD 1.107 ± 0.189 1.142 ± 0.200 −0.180; 0.558
 AD 1.539 ± 0.187 1.555 ± 0.239 −0.075; 0.773
 RD 0.937 ± 0.184 0.893 ± 0.191 0.235; 0.455
  1. Numbers indicate mean score (±SEM) for fractional anisotropy (FA), medial diffusivity (MD), axial diffusivity (AD) and radial diffusivity (RD) values for either the patient or control group; units for MD, AD and RD are (mm2/s × 10−3). Tracts include the genu of the corpus callosum (CC), left and right anterior limb of the internal capsule (ALIC) and the anterior commissure (AC). Values represent group mean ± SD
  2. * Significant difference between groups p < 0.05