Table 1 The demographic characteristics of patients with mood disorder.

	Patients with mood disorder (n = 24)		p value
	BL group (n = 12)	DL group (n = 12)	p value
Age mean (s.d.)	37.7 (12.1)	38.3 (11.4)	0.89
Sex (Male, Female)	6, 6	6, 6	1
Diagnosis	MDD: 7, BP: 5	MDD: 10, BP: 2	0.37
Comorbidity	Panic: 2, SAD:1	Panic: 5, SAD: 2, GAD: 1
Psychotropics	Antidepressant:10 (Esci:2, Mirt:2, Sert:1, Paro:2, Dulo:1, Venl:1, Traz:1), Mood stabilizer:6 (LTG:3, Li:3), Antipsychotics:7 (QUE:4, ARI:1, LEV:2), Hypnotics:9	Antidepressant:16 (Esci:4, Dulo:3, Mirt:6, Sert:1, Paro:1, Dosu:1), Mood stabilizer:7 (LTG:4, Li:2, VPA:1), Antipsychotics:6 (QUE:2, ARI:2, OLA:1, SUL:1), Hypnotics:10
Season	Spring:1, Summer:4, Autumn:4, Winter:3	Spring:1, Summer:3, Autumn:3, Winter:5	0.85
Environmental light (s.d.) lux	168.3 (60.1)	129.8 (52.2)	0.11
Log-transformed environmental light (s.d.)	2.20 (0.17)	2.08 (0.20)	0.11
HAM-D (s.d.)	9.1 (3.6)	9.83 (4.0)	0.64
BDI (s.d.)	18.6 (10.9)	20.9 (10.0)	0.59
YMRS (s.d.)	1.3 (1.4)	1.0 (1.0)	0.62
VAS of mood (s.d.)	45.5 (13.8)	42.5 (15.2)	0.62
DG Volume mm³ mean (s.d.)
Left DG-head	153.5 (23.0)	156.1 (17.9)	0.76
Left DG-body	131.8 (14.9)	132.0 (20.9)	0.98
Left DG-total	285.3 (33.4)	288.2 (34.2)	0.84
Right DG-head	161.0 (21.4)	158.9 (15.3)	0.77
Right DG-body	139.1 (17.7)	132.5 (17.6)	0.37
Right DG-total	300.3 (35.3)	291.4 (25.5)	0.49

ARI Aripiprazole, BDI Beck Depression Inventory, BP bipolar disorder, BL group Bright light exposure group, DG dentate gyrus, DL group Dim light exposure group, Dosu Dosulepin, Dulo Duloxetine, Esci Escitalopram, GAD Generalized anxiety disorder, HAM-D Hamilton Depression Rating Scale, MDD Major Depressive Disorder, Mirt Mirtazapine, LEV Levomepromazine, Li Lithium, LTG Lamotrigine, OLA Olanzapine, Panic panic disorder, Paro paroxetine, QUE Quetiapine, Sert Sertraline, SUL sulpiride, SAD social anxiety disorder, s.d. standard deviation, Traz Trazodone, VPA Valproate, Venl Venlafaxine, VAS Visual Analog Scale, YMRS Young Mania Rating Scale.

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