Table 1.

Respondents’ socio-demographic characteristics (n = 229)

Variable	Number (n)	Frequency (%)
Age
40–44	69	30.1
45–49	62	27.1
50–54	53	23.1
55–59	44	19.2
60–64	1	0.4
Ethnicity
Malay	185	80.8
Indian	24	10.5
Chinese	19	8.3
Others	1	0.4
Marital status
Married	210	91.7
Single	9	3.9
Divorced	5	2.2
Widow	5	2.2
Work routine
Office work	88	38.4
Shift	41	17.9
Mixed	100	43.7
Working experience (years)
10–14	9	3.9
15–19	59	25.8
20–24	58	25.3
25–29	59	25.8
30–34	36	15.7
35–39	8	3.5