Table 2.

Mean and standard deviation values of global network indices including strength, clustering coefficient (CC), and path length (PL) in each frequency band among the bipolar disorder, major depressive disorder, and healthy control groups.

	BD (N = 35)	MDD (N = 39)	HC (N = 42)	Effect size (η2)	P*	Post-hoc (Bonferroni)
Delta band
Strength	28.02 ± 1.26	27.99 ± 1.12	27.67 ± 0.89	0.006	0.702
CC	0.41 ± 0.02	0.41 ± 0.02	0.41 ± 0.01	0.006	0.728
PL	2.57 ± 0.10	2.57 ± 0.09	2.59 ± 0.07	0.004	0.802
Theta band
Strength	24.51 ± 1.40	24.28 ± 1.09	23.91 ± 0.87	0.023	0.274
CC	0.36 ± 0.02	0.35 ± 0.02	0.35 ± 0.01	0.022	0.282
PL	3.02 ± 0.15	3.04 ± 0.12	3.07 ± 0.10	0.019	0.344
Alpha band
Strength	26.02 ± 2.27	26.97 ± 2.99	25.06 ± 2.00	0.037	0.124
CC	0.38 ± 0.03	0.39 ± 0.04	0.36 ± 0.03	0.036	0.127
PL	2.84 ± 0.24	2.75 ± 0.29	2.94 ± 0.21	0.031	0.173
Low beta band
Strength	21.22 ± 1.08	21.03 ± 0.91	20.40 ± 0.93	0.077	0.012
CC	0.30 ± 0.02	0.30 ± 0.01	0.29 ± 0.01	0.077	0.011
PL	3.55 ± 0.17	3.59 ± 0.14	3.68 ± 0.15	0.080	0.009
High beta band
Strength	17.54 ± 1.14	17.31 ± 1.02	16.54 ± 0.85	0.112	0.001	BD > HC, MDD > HC
CC	0.25 ± 0.02	0.24 ± 0.01	0.23 ± 0.01	0.114	0.001	BD > HC, MDD > HC
PL	4.38 ± 0.30	4.44 ± 0.25	4.67 ± 0.24	0.129	< 0.001	BD < HC, MDD < HC
Gamma band
Strength	14.18 ± 1.34	14.29 ± 1.28	13.96 ± 1.02	0.017	0.383
CC	0.19 ± 0.02	0.19 ± 0.02	0.19 ± 0.01	0.017	0.386
PL	5.29 ± 0.55	5.24 ± 0.46	5.38 ± 0.43	0.015	0.429

*The p value was adjusted via Bonferroni correction with 0.05/18 = 0.002778.

BD, bipolar disorder; MDD, major depressive disorder; HC, healthy control.