Table 2.

Scores between sociodemographic relation to knowledge, attitude and practice

Variable	Subgroup	Mean score ± SD
		Knowledge	Attitude	Practice
Age	40–44	2.51 ± 1.451	19.06 ± 3.759	21.00 ± 3.317
	45–49	2.31 ± 1.343	17.73 ± 4.036	17.59 ± 2.598
	50–54	2.55 ± 1.34	18.66 ± 3.669	18.70 ± 3.851
	55–59	2.67 ± 1.434	18.37 ± 3.395	18.06 ± 4.946
	60–65	2.59 ± 1.321	17.79 ± 2.745	18.47 ± 4.291
	p-value	0.504 b	0.082 b	0.041 b**
Education level	No formal education	2.24 ± 1.140	17.41 ± 4.166	18.50 ± 4.637
	Primary school	2.20 ± 1.306	17.61 ± 3.804	18.69 ± 3.905
	Secondary school	2.58 ± 1.347	18.44 ± 3.700	18.39 ± 3.741
	University	2.78 ± 1.493	19.12 ± 3.048	19.22 ± 3.872
	p-value	0.009 b**	0.008 b**	0.876 b
Ethnicity	Malay	2.44 ± 1.303	17.91 ± 3.978	18.31 ± 4.033
	Chinese	2.53 ± 1.444	18.93 ± 3.095	19.92 ± 3.692
	Indian	2.567 ± 1.407	17.75 ± 3.847	17.46 ± 3.203
	p-value	0.768 b	0.017 b**	0.033 b**
Employment status	Employed	2.65 ± 1.409	18.34 ± 3.773	18.98 ± 3.663
	Housewife	2.34 ± 1.406	18.49 ± 3.806	18.64 ± 3.480
	Retired	2.55 ± 1.231	18.32 ± 3.165	18.06 ± 5.093
	Unemployed	1.94 ± 1.144	16.29 ± 2.568	18.00 ± 3.674
	p-value	0.080 b	0.138 b	0.824 b
Marital status	With partner	2.51 ± 1.408	18.32 ± 3.719	18.64 ± 3.869
	Without partner	2.46 ± 1.2	18.225 ± 3.469	18.83 ± 3.774
	p-value	0.751 a	0.820 a	0.837 a
Income	< RM1000	2.63 ± 1.378	18.38 ± 3.920	17.74 ± 4.593
	RM1000-2500	1.94 ± 1.235	17.03 ± 3.578	17.85 ± 3.745
	RM2500-5000	2.74 ± 1.382	18.85 ± 3.820	19.39 ± 2.777
	RM5000-RM10000	2.69 ± 1.362	18.76 ± 2.672	20.67 ± 4.519
	> RM10000	2.86 ± 1.351	20.21 ± 2.392	19.60 ± 3.911
	p-value	< 0.001 b**	< 0.001 b**	0.106 b

Notes: ** indicates p < 0.05 is significant; a = independent t-test; b = one-way ANOVA