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Using the behavior change wheel to develop text messages intervention (MedText-PCI) to promote medication adherence
Fang Yong1, Han Zhihao2, Zhou Xi1
1Changsha Medical University, Changsha, China.
Objectives:
This study aimed to use the Behaviour Change Wheel (BCW) framework to develop a theory-informed text message intervention (MedText-PCI) to improve medication adherence in patients after percutaneous coronary intervention (PCI).
Methods:
This intervention development study was guided by the BCW framework. A behavioural diagnosis was first undertaken to identify barriers and facilitators to medication adherence, which were then mapped onto the Capability, Opportunity, Motivation-Behaviour (COM-B) model. Intervention functions and behaviour change techniques (BCTs) were selected systematically using the APEASE criteria. Based on the selected BCTs, text messages were developed collaboratively by medical experts and a communication specialist.
Results:
The final MedText-PCI intervention comprised 115 theory-informed text messages incorporating 15 distinct BCTs. The messages addressed key domains including treatment benefits, consequences of non-adherence, action planning, and motivational reinforcement. Iterative expert review supported the clinical accuracy, clarity, and accessibility of the intervention content.
Conclusion:
Using the BCW framework, this study developed a theory-informed text message intervention to support medication adherence after PCI. The development process was systematic and transparent, providing a reproducible basis for future feasibility testing and outcome evaluation. MedText-PCI has the potential to inform adherence support strategies in post-PCI secondary prevention.Clinical Trial Registration: https://www.chictr.org.cn/bin/project/edit?pid=172238, identifier ChiCTR2200061353.
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