Table 4. Graph-theory measures and summary of statistical comparisons among sleep stages within each group.
| Awake | N1 | N2 | N3 | REM | p | Post hoc | |
|---|---|---|---|---|---|---|---|
| Small-worldness index | |||||||
| Control | 1.14±0.16 | 1.21±0.15 | 1.29±0.19 | 1.37±0.22 | 1.19±0.16 | 0.011 | [N2>W]†, [N3>W]* |
| RLS baseline | 1.20±0.17 | 1.21±0.19 | 1.24±0.25 | 1.26±0.22 | 1.22±0.17 | 0.915 | |
| RLS follow-up | 1.15±0.24 | 1.25±0.20 | 1.41±0.21 | 1.45±0.18 | 1.23±0.19 | 0.005 | [N3>W]*, [N2>REM]* |
| Normalized clustering coefficient | |||||||
| Control | 1.18±0.18 | 1.25±0.17 | 1.34±0.22 | 1.44±0.24 | 1.23±0.17 | 0.006 | [N2>W]†, [N3>W]† |
| RLS baseline | 1.25±0.18 | 1.24±0.21 | 1.31±0.29 | 1.32±0.26 | 1.27±0.17 | 0.937 | |
| RLS follow-up | 1.18±0.24 | 1.27±0.23 | 1.47±0.23 | 1.53±0.22 | 1.27±0.20 | 0.004 | [N2>W]*, [N3>W]*, [N3>N1]*, [N2>REM]* |
| Normalized characteristic path length | |||||||
| Control | 1.03±0.03 | 1.03±0.02 | 1.04±0.02 | 1.05±0.03 | 1.03±0.02 | 0.239 | |
| RLS baseline | 1.04±0.03 | 1.03±0.02 | 1.05±0.04 | 1.04±0.04 | 1.05±0.03 | 0.828 | |
| RLS follow-up | 1.03±0.05 | 1.02±0.02 | 1.04±0.03 | 1.05±0.03 | 1.03±0.02 | 0.070 |
Data are mean±standard deviation values.
*p<0.05 and †p<0.01, respectively, in Wilcoxon signed-rank tests with Bonferroni correction.
REM: rapid eye movement, RLS: restless legs syndrome, W: awake.