Changes in the amplitude of low-frequency fluctuations in specific frequency bands in major depressive disorder after electroconvulsive therapy

Table 1 Demographic data of the major depressive disorder patients and healthy controls

Characteristic	MDDs (n = 22)		HCs (n = 15)	P value
Sex (male/female)	8/14		5/10
Age (mean ± SD)	34.4 ± 10.1		36.1 ± 9.4	0.4951
Education years (mean ± SD)	11.61 ± 3.28		14.93 ± 3.64	0.0911
HAMD	Pre-ECT	30.59 ± 4.35	2.18 ± 1.32	< 0.0012
	Post-ECT	8.76 ± 5.58

¹Mann-whitney U nonparametric tests (criteria alpha = 0.05).

²Paired t tests between pre- and post-electroconvulsive therapy major depressive disorder patients. MDDs: Major depressive disorder patients; HCs: Healthy controls; HAMD: Hamilton Rating Scale for Depressive; ECT: Electroconvulsive therapy.