Table 4.

Associated factors: awareness, understanding and use of sodium labels. Results of logistic analysis by a stepwise method

Final model a	β	SE b	P value	Odds Ratio	95% CI of OR
					Lower	Upper
Awareness of sodium label
Age	−0.501	0.100	< 0.001	0.606	0.498	0.737
Educational level	0.416	0.088	< 0.001	1.516	1.276	1.801
Cardiovascular Disease	0.704	0.210	0.001	2.022	1.339	3.052
Score of attitude towards salt intake c	0.020	0.006	< 0.001	1.020	1.009	1.031
Constant	−3.111	0.517	< 0.001	0.045	─	─
Understanding of sodium label d
Educational level	0.436	0.065	< 0.001	1.547	1.361	1.757
Awareness of recommended daily salt intake	0.937	0.183	< 0.001	2.553	1.784	3.653
Salt reduction behavior e	0.512	0.178	0.004	1.668	1.177	2.365
Constant	−2.149	0.267	< 0.001	0.117	─	─
The use of sodium label f
Income level	0.355	0.143	0.013	1.426	1.078	1.886
Score of attitude towards salt intake c	0.037	0.007	< 0.001	1.038	1.025	1.052
Source of participants	−0.870	0.268	0.001	0.419	0.248	0.708
Awareness of sodium label	0.553	0.272	0.042	1.739	1.020	2.964
Constant	−4.522	0.727	< 0.001	0.011	─	─

^a Sex, age, source of participants, educational level, household monthly income per capita, BMI (kg/m²), existing health problems, awareness of recommended daily salt intake, score of attitude towards salt intake, and salt reduction behavior were included in the model at the first step

^b: Standard error

^c: The score of participants towards salt intake, translated into 100 points

^d: Knowing the relationship between salt and sodium

^e: The behavior of usually controlling the salt intake in daily life

^f: Reading or checking nutrition label most of time when shopping