TABLE 1.

Baseline characteristics of participants in the intervention and control groups (N = 281).

	Intervention group (n = 138)				Control group (n = 143)
	n	%	Mean	SD	n	%	Mean	SD
Age			35.65	8.34			37.49	9.05
Sex
Male	82	59.4			87	60.8
Female	56	40.6			56	39.2
Marital status
Not married	64	46.4			72	50.4
Married	74	53.6			71	49.7
Occupation
Manager	14	10.1			20	14.0
Professional	70	50.7			59	41.3
Clerical	19	13.8			19	13.3
Physical work (blue-collar)	1	0.7			2	1.4
Sales	23	16.7			27	18.9
Others	11	8.0			16	11.2
Education
High school or some college	24	17.4			30	21.0
University or higher	114	82.6			113	79.0
Employment
Regular	117	84.8			120	83.9
Non-regular*	21	15.2			23	16.1

* Temporary staff, contact employee, and part-time employee.