Table 1.

Primary psychiatric diagnoses on patients with hikikomori (HK patients) and patients without hikikomori (non-HK patients).

Diagnosis	HK patients (N = 22)		Non-HK patients (N = 18)
	Number	%	Number	%
Major depressive disorder	3	13.6	3	16.7
Minor depressive disorder	17	77.3	10	55.6
Bipolar affective disorder	0	0	1	5.6
Psychosis	1	4.5	1	5.6
Social anxiety disorder	1	4.5	1	5.6
Panic disorder	0	0	1	5.6
Alcohol use disorder	0	0	1	5.6