Table 2.

Global and local graph metrics of the brain connectome.

Global graph metric	PD-LCT-L	PD-LCT-H	p
$Ar$	0.1809$\pm$0.04	0.1827$\pm$0.04	0.9021
$Q$	17.6911$\pm 2.20$	18.2621$\pm$2.45	0.4454
$Hr$	0.0469$\pm$0.02	0.0439$\pm$0.02	0.6520
$E_{global}$	0.2171$\pm$0.01	0.2158$\pm$0.01	0.6663
$E_{local}$	0.3621$\pm$0.01	0.3648$\pm$0.01	0.2825
$C_p$	0.3159$\pm$0.01	0.3196$\pm$0.01	0.2432
$\gamma$	1.0029$\pm$0.12	1.0254$\pm$0.15	0.6088
$\lambda$	0.5780$\pm$0.02	0.5805$\pm$0.04	0.7954
$\sigma$	0.7598$\pm$0.09	0.7798$\pm$0.10	0.5133
$L_p$	1.0962$\pm$0.07	1.1021$\pm$0.08	0.8222
$S_r$	−1.1078$\pm$1.65	−0.9257$\pm$1.26	0.7218

${\mathrm{A}}_{\mathrm{r}}$, assortativity; ${\mathrm{C}}_{\mathrm{p}}$, clustering coefficient; ${\mathrm{E}}_{\mathrm{global}}$, global efficiency; ${\mathrm{E}}_{\mathrm{local}}$, local efficiency; $\mathrm{Hr}$, hierarchy; ${\mathrm{L}}_{\mathrm{p}}$, characteristic path length; PD-LCT-H, Parkinson disease patients with high improvement on the levodopa challenge test; LCT-L, Parkinson disease patients with low improvement on the levodopa challenge test; $\mathrm{Q}$, modularity score; ${\mathrm{S}}_{\mathrm{r}}$, synchronization; γ, normalized clustering coefficient; λ, normalized characteristic path length; σ, small-world.