Table 9.

Coding of variables for multiple linear regression

Factor	Variable Name	Coding
Caregiver gender	X1	Male = 0; Female = 1
Caregiver education level	X2	Junior high or below = 1; High school/vocational = 2; Associate/Bachelor = 3; Postgraduate or above = 4
Marital status	X3	Married = 1;Unmarried = 2༛Divorced = 3
Caregiver monthly household income	X4	< 3800 = 1; 3800–5000 = 2; 5000–8000 = 3; ≥8000 = 4
Patient first episode	X5	Yes = 1; No = 0
Objective support	X6	Actual measured value
Subjective support	X7	Actual measured value
Support utilization	X8	Actual measured value
Family functioning	X9	Actual measured value
Positive coping	X10	Actual measured value
Negative coping	X11	Actual measured value