Key result
A diabetes self-management program demonstrated that behavior-specific self-efficacy mediated changes in exercise and monitoring, while belief in control mediated quality of life.
Why the study?
Do illness beliefs and self-efficacy mediate change in self-management behaviours and illness specific quality of life following a self-management intervention in individuals with type 2 diabetes?
RCT (n=124)
Randomized
Do illness beliefs and self-efficacy mediate change in self-management behaviours and illness specific quality of life following a self-management intervention in individuals with type 2 diabetes?
Behaviour-specific self-efficacy and belief in control over diabetes are important mediators for improving self-management behaviours and quality of life in type 2 diabetes.
Answers are grounded in this paper and cite their sources.
Targeting self-efficacy and control beliefs in type 2 diabetes programs improves behaviors and QoL; confirms mediation in this RCT.
The purpose of this study was to test the extent that constructs from two theoretical models (self-regulatory theory and social cognitive theory) mediated change in outcomes following a self-management intervention. One hundred and twenty four individuals with type 2 diabetes who had participated in a randomised controlled trial of a diabetes self-management programme were analysed for the extent that illness beliefs and self-efficacy mediated change in self-management behaviours and illness specific quality of life. Exercise specific self-efficacy significantly mediated change in exercise at three months (B = .03; .01, p < .05) while monitoring specific self-efficacy mediated change in monitoring behaviour at both three (B = .04; .01, p < .01) and nine months follow-up (B = 5.97; 1.01, p < .01). Belief in control over diabetes mediated change in illness specific quality of life at three months (B = -.07; .28, p < .05) and nine months (B = .79; .28, p < .01) follow-ups, as well as change in exercise behaviour at immediately post-intervention (B = -.12; .17, p < .05). Behaviour-specific self-efficacy may have a stronger role in mediating self-management behaviours than illness beliefs; however, belief in control over diabetes may be important to manipulate for change in quality of life. This suggests different theoretical constructs may mediate change dependent on outcome.
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Steed et al. (2013) conducted an RCT in Type 2 diabetes (n=124). Theoretically based self-management intervention was evaluated on Change in self-management behaviours and illness specific quality of life mediated by illness beliefs and self-efficacy. A diabetes self-management program demonstrated that behavior-specific self-efficacy mediated changes in exercise and monitoring, while belief in control mediated quality of life.
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