Table 3.

Demographic characteristics of the drivers

Variables	Category	n	%
Age (year)	20–30	37	15.4
	31–40	104	43.1
	41–50	64	26.5
	51–60	30	12.4
	>60	6	2.5
Marital status	Single	3	1.2
	Married	238	98.8
Year driver’s license was obtained	1972–1982	14	5.8
	1982–1992	38	15.8
	1992–2002	113	46.9
	2002–2011	76	31.5
Educational levels	Illiterate	14	5.8
	Elementary	17	7.1
	Middle school	97	40.2
	Diploma	96	39.8
	Higher diploma	15	6.2
	Bachelor	2	0.8
Work experience (year)	1–5	46	19.1
	6–10	78	32.4
	11–15	66	27.4
	16–20	30	12.4
	21–25	11	4.6
	26–30	7	2.9
	31–35	3	1.2