Preliminary efficacy of an acceptance-based diabetes education (ACT-DE) programme for people with type 2 diabetes on diabetes distress and self-care behaviours: A pilot randomised controlled trial

Abstract

Background

Diabetes distress is often characterised by aversive feelings about diabetes and avoidance of diabetes self-care, leading to suboptimal blood glucose control, diabetes complications and depression. Evidence from a recent review has indicated the potential efficacy of acceptance-based diabetic self-management programmes for improving blood glucose levels and mental health outcomes by fostering psychological flexibility.

Methods

We conducted a two-arm and assessor-blinded pilot randomised controlled trial (RCT) with 48 participants aged 18–64 with type 2 diabetes and moderate distress levels, in which we compared a 6-week acceptance and commitment therapy and diabetes education (ACT-DE) programme intervention with diabetes education. Diabetes distress (the primary outcome), self-care behaviour, self-efficacy in diabetes management, and psychological inflexibility were measured at baseline and post-intervention. Focus group interviews were conducted to explore the intervention group's perceptions of the benefits and limitations of the intervention.

Results

Results of ANCOVA test showed that the intervention group exhibited significantly greater decrease in diabetes distress (effect size [Cohen's d] = 0.65), and increase in exercise frequency (d = 1.16), and foot-care frequency (d = 0.59) than the diabetes education group. The qualitative feedback of the intervention group revealed that the learnt ACT skills can be effectively applied in self-care and highlighted the utility of some of the intervention's therapeutic components, primarily mindfulness practices, metaphors, and interactive diabetes education. The intervention was well-accepted, with an 87.5% completion rate, but caution is needed due to a low recruitment rate (28.1%) during COVID-19 pandemic peak.

Conclusion

This pilot study confirmed that ACT-DE programme is an acceptable intervention for people with type 2 diabetes. It demonstrated preliminary efficacy with medium-to-large effect sizes in alleviating the participants’ diabetes distress and improving their self-care. Recruitment strategies can be improved to enhance the feasibility. Moreover, a full-scale RCT with longer-term follow-up is warranted to examine the intervention effects on diabetes distress, blood glucose control and other health outcomes.