Do compensatory health beliefs predict behavioural intention in a multiple health behaviour change context? Evidence in individuals with cardiovascular diseases?

Figures & data

Table 1. Results of the multiple linear regressions to predict intention toward physical activity.

	CHB – medication model				CHB – diet model
Variables	b	β	p		b	β	p
Direct effects
Self-efficacy	1.96***	.63***	< .001 [1.45; 2.48]		2.01***	.64***	< .001 [1.47; 2.54]
Attitudes	.84	.10	.26 [−.61; 2.28]		1.10	.13	.16 [−.43; 2.63]
Subjective norms	.37	.06	.44 [−.57; 1.31]		.23	.04	.66 [−.82; 1.29]
Risk perception	.28	.11	.24 [−.19; .74]		.04	.01	.87 [−.40; .47]
CHB	−.08	−.09	.21 [−.20; .05]		−.10	−.09	.24 [−.26; .06]
Interactions
CHB X self-efficacy	−.41*	−.17*	.03 [−.78; −.05]		.02	.01	.95 [−.43; .46]
CHB X risk perception	.14	.07	.45 [−.22; .49]		−.05	−.02	.82 [−.53; .42]
R^2	.58				.55
Durbin – Watson	2.30				2.32

Note. Dependent variable is intention toward physical activity. ^t represents p < .10, *p < .05, **p < .01, ***p < .001. Numbers into brackets represent 95% confidence interval.

Table 2. Results of the multiple linear regressions to predict intention toward healthy diet.

	CHB – medication model				CHB – physical activity model
Variables	b	β	p		b	β	p
Direct effects
Self-efficacy	1.87***	.50***	< .001 [1.31; 2.42]		1.96***	.54	< .001 [1.39; 2.52]
Attitudes	1.30*	.15*	.05 [.00; 2.59]		1.30^t	.15^t	.06 [−.07; 2.67]
Subjective norms	.50	.12	.11 [−.11; 1.12]		.48	.11	.14 [−.16; 1.12]
Risk perception	.56*	.20*	.02 [.11; 1.00]		.36^t	.13^t	.10 [−.07; .79]
CHB	−.04	−.06	.43 [−.15; .06]		−.05	−.07	.37 [−.15; .06]
Interactions
CHB X self-efficacy	−.63**	−.22**	.00 [−1.04; −.22]		−.59**	−.21**	.01 [−1.01; −.17]
CHB X risk perception	.70***	.30***	< .001 [.33; 1.06]		.48**	.22**	.01 [.14; .83]
R^2	.57				.53
Durbin – Watson	2.28				2.21

Note. Dependent variable is the intention toward healthy diet. ^t represents p < .10, *p < .05, **p < .01, ***p < .001. Numbers into brackets represent 95% confidence interval.

Figure 1. Moderation of self-efficacy-intention and risk perception-intention relationships by CHB-medication. Because similar patterns of results were observed for all significant interactions, plots for the other CHBs are in the supplemental materials file. Simple slopes are provided for levels of the moderator 2 SD and 1 SD below and above the mean, and at the mean. Graphs show the computed 95% confidence region (shaded area), the observed data (grey circles), the maximum and minimum values of the outcome (dashed horizontal lines), and the crossover point (diamond). PTCL = percentile.