Table 2 Global topological attributes of brain WM structural networks in the methamphetamine (MA)-dependent patients (MA) and the normal controls (Control).

From: Aberrant topology of white matter networks in patients with methamphetamine dependence and its application in support vector machine-based classification

Network topological attributes

Contrast

P value

Cohen’s d

σ

Control > MA

0.008

0.5107

Cp

Control > MA

0.734

− 0.1309

Lp

Control > MA

0.060

0.3153

Qm

Control > MA

0.023

0.4213

  1. σ = small-wordness; Cp = weighted clustering-coefficient; Lp = weighted characteristic path length; Qm = weighted modularity.
  2. Cohen’s d indicates the value of effect size. The small, medium and large levels of the effect size are 0.2, 0.5 and 0.8, respectively, according to Cohen’s definition.