Table 3. Multivariate logistic regression of disease-related factors, demographics, social psychology, and family burden (n = 303)^*.

Variable	Family burden
	adjusted OR (95% CI)	P value
Number of admissions
<3	ref
≧3	2.83(1.44, 5.56)	0.003
Caregiver gender
Male	ref
Female	2.38(1.10, 5.12)	0.027
Caregiver education
Primary	ref
Middle	2.40(1.07, 5.40)	0.035
High	0.55(0.19, 1.57)	0.261
Additional dependents
No	ref
Yes	2.40(1.18, 4.90)	0.016
Patient function(GAF)	0.97(0.96, 0.99)	0.000
Patient age	0.94(0.89, 0.99)	0.036
Family function	0.86(0.77, 0.96)	0.008
Care network function	1.05(1.01, 1.09)	0.027

*Family history of mental illness, whether having insurance, illness duration, medication adherence, location, caregiver age, patient gender, patient marriage, caregiver marriage, patient occupation, caregiver occupation, patient education, caregiver household income, whether having co-caregivers, caregiver having physical illness, kinship with the patient, length of care, caregiving network size were not significantly associated with family burden and thus are not listed in this table