Table 2

Graph theoretical properties that were investigated in this study

Graph theoretical propertyExplanation
Network measurements
 Global efficiencyAverage of inverse nodal shortest path length
 Average clustering coefficientAverage of nodal clustering coefficients
 Average betweenness centralityAverage of nodal betweenness centrality
Node measures
 Nodal degreeNo of links connected to the node
 Local efficiencyAverage of the inverse shortest path length in the neighbourhood of the node
 Clustering coefficientFraction of a node's neighbours that are neighbours of each other
 Betweenness centralityNo of shortest paths from and to all nodes that pass this node