Table 2.

Graph theoretical properties that were investigated in this study

Graph theoretical property	Explanation
Network measurements
Global efficiency	Average of inverse nodal shortest path length
Average clustering coefficient	Average of nodal clustering coefficients
Average betweenness centrality	Average of nodal betweenness centrality
Node measures
Nodal degree	No of links connected to the node
Local efficiency	Average of the inverse shortest path length in the neighbourhood of the node
Clustering coefficient	Fraction of a node's neighbours that are neighbours of each other
Betweenness centrality	No of shortest paths from and to all nodes that pass this node