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Table 2 Minimum spanning tree-based betweenness centrality differences between groups

From: Declining functional connectivity and changing hub locations in Alzheimer’s disease: an EEG study

Frequency band Region Control Severe AD Moderate AD Mild AD P for trend
   Mean BC (SD) Mean BC (SD) Mean BC (SD) Mean BC (SD)
Delta global 0.154 (0.014) 0.154 (0.013) 0.155 (0.012) 0.154 (0.014) N.S.
  anterior 0.206 (0.043) 0.188 (0.050) 0.199 (0.045) 0.209 (0.047) N.S.
  central 0.120 (0.045) 0.122 (0.054) 0.129 (0.047) 0.121 (0.046) N.S.
  posterior 0.126 (0.039) 0.144 (0.043) 0.130 (0.039) 0.123 (0.043) N.S.
Theta global 0.158 (0.028) 0.157 (0.013) 0.157 (0.016) 0.157 (0.014) N.S.
  anterior 0.153 (0.057) 0.157 (0.053) 0.154 (0.049) 0.155 (0.054) N.S.
  central 0.142 (0.049) 0.149 (0.046) 0.142 (0.047) 0.142 (0.043) N.S.
  posterior 0.174 (0.044) 0.162 (0.049) 0.171 (0.040) 0.170 (0.044) N.S.
Lower alpha global 0.154 (0.015) 0.159 (0.014) 0.156 (0.012) 0.158 (0.013) 0.02
  anterior 0.120 (0.039) 0.144 (0.045) 0.134 (0.044) 0.136 (0.045) 0.04
  central 0.133 (0.048) 0.145 (0.049) 0.142 (0.047) 0.142 (0.044) N.S.
  posterior 0.202 (0.039) 0.184 (0.046) 0.189 (0.043) 0.193 (0.038) N.S.
Upper alpha global 0.156 (0.013) 0.161 (0.012) 0.160 (0.014) 0.161 (0.014) 0.01
  anterior 0.118 (0.052) 0.140 (0.046) 0.133 (0.044) 0.129 (0.041) 0.01
  central 0.150 (0.056) 0.157 (0.054) 0.160 (0.049) 0.163 (0.053) 0.02
  posterior 0.200 (0.045) 0.186 (0.042) 0.188 (0.042) 0.192 (0.040) N.S.
Beta global 0.142 (0.015) 0.142 (0.017) 0.146 (0.018) 0.145 (0.016) N.S.
  anterior 0.082 (0.053) 0.127 (0.055) 0.120 (0.060) 0.117 (0.058) 0.00
  central 0.185 (0.059) 0.170 (0.066) 0.178 (0.069) 0.185 (0.061) N.S.
  posterior 0.172 (0.054) 0.138 (0.058) 0.148 (0.054) 0.143 (0.057) 0.03
  1. The data are presented as raw minimum spanning tree-based betweenness centrality (BC). Note that raw data are presented, while analyses were performed on log-transformed data. Significance was obtained by a multivariate general linear model and Bonferroni post-hoc analysis. Significant differences between the patient groups and the control group are printed in bold. AD Alzheimer’s disease, BC betweenness centrality, SD standard deviation