Table 2.

Subgroup analysis of pooled prevalence of caregiver burden among caregivers of patient with mental illness.

Variables		No. of Studies	Prevalence, %	95% CI	I2, %	p-Value
Study setting	Community (Subgroup c)	8	28.28	18.97–37.58	99.74	<0.001
	Clinic (Subgroup b)	6	27.52	14.78–40.26	99.87	<0.001
	Hospital (Subgroup a)	12	36.06	22.50–49.63	99.89	<0.001
	Subtotal	26	31.67	26.22–37.12	99.85	<0.001
Instruments	The Zarit Burden Interview (Subgroup 0)	13	36.90	28.17–45.62	99.26	<0.001
	Others (Subgroup 1)	13	26.47	19.55–33.40	99.90	<0.001
	Subtotal	26	31.67	26.22–37.12	99.85	<0.001
Disorders	With psychosis (Subgroup 1)	14	35.88	27.03–44.72	99.88	<0.001
	Without psychosis (Subgroup 0)	12	26.82	17.98–35.67	99.82	<0.001
	Subtotal	26	31.67	26.22–37.12	99.85	<0.001