Table 1.

Characteristics of the respondents (N = 619)

Characteristic	Categories	N	%
Gender	Male	248	40.1
	Female	371	59.9
Age-group (years)	< 18	38	6.1
	18–30	378	61.1
	31–40	54	8.7
	41–50	83	13.4
	51–o 60	42	6.8
	> 60	24	3.9
Living district	City	204	33.0
	Town	163	26.3
	Village	252	40.7
Occupation	Medical professionals	38	6.1
	Civil servants/employees of state-owned enterprises and public institutions	69	11.1
	Company employees	79	12.8
	Workers	44	7.1
	Farmers	49	7.9
	Self-employed	59	9.5
	Retired staff	37	6.0
	Students	211	34.1
	Others	33	5.3
Marital status	Married	311	50.2
	Unmarried	307	49.6
Level of education	Primary school or below	24	3.9
	Junior high school	61	9.9
	Senior high school/technical secondary school	79	12.8
	Junior college	169	27.3
	Undergraduate	262	42.3
	Post-undergraduate	24	3.9
Family members	1	1	0.2
	2	15	2.4
	3	161	26.0
	4	234	37.8
	≥ 5	208	33.6