To what extent do dietary costs explain socio-economic differences in dietary behavior?

Nutrition Journal

Table 4 Results regarding the mediating role of dietary cost in the association between individual educational and household educational level and the DHD15-index and DASH score for females and males separately

Independent variable	Mediator	Dependent variable	Females^a			Males^b
			Indirect effect		Proportion mediated	Indirect effect		Proportion mediated
			β	Bootstrap 95%CI	Proportion mediated	β	Bootstrap 95%CI	Proportion mediated
	Dietary cost (€/d)	DHD15- index (score)	Individual educational level
Middle vs. low			0.27*	0.15; 0.40	6.8	−0.02	− 0.18; 0.10	N/A
High vs. low			0.28*	0.18; 0.40	3.3	−0.03	− 0.21; 0.14	N/A
High vs. Middle			0.01	−0.07; 0.10	N/A	−0.01	−0.08; 0.06	N/A
			Household educational level
Middle vs. low			0.19*	0.10; 0.31	7.1	−0.02	−0.14; 0.08	N/A
High vs. low			0.29*	0.18; 0.42	3.8	−0.04	−0.24; 0.15	N/A
High vs. Middle			0.10*	0.02; 0.19	2.0	−0.02	−0.14; 0.09	N/A
		DASH diet (score)	Individual educational level
Middle vs. low			0.10*	0.06; 0.15	11.0	0.00	−0.04; 0.04	N/A
High vs. low			0.11*	0.07; 0.14	5.4	0.00	−0.05; 0.05	N/A
High vs. Middle			0.01	−0.03; 0.04	N/A	0.00	−0.02; 0.02	N/A
			Household educational level
Middle vs. low			0.08*	0.04; 0.11	11.7	0.00	−0.03; 0.03	N/A
High vs. low			0.11*	0.08; 0.15	5.8	0.00	−0.05; 0.05	N/A
High vs. Middle			0.04*	0.01; 0.07	3.4	0.00	−0.03; 0.04	N/A

Abbreviations: B beta regression coefficient, CI confidence intervals, N/A Not Applicable
^aN = 7175 and N = 7182 for individual and household educational level, respectively
^bN = 2100 for both individual and household educational level
*P < 0•05
All analyses were adjusted for age, study center and energy intake
Proportion mediated was not calculated for non-significant indirect effects

ISSN: 1475-2891