Background/Objectives
Public health models of behavior change have served as the basis for intervention across a wide range of behaviors. The purpose of this study was to develop and test the acceptability of personalized intervention materials to promote advance care planning (ACP) based on the Transtheoretical Model (TTM), in which readiness to change is one key organizing construct.
Design
Development study creating an expert system delivering TTM-personalized feedback reports and stage-matched brochures with more general information on ACP, with modifications based on participant reviews.
Setting
Senior centers
Participants
A total of 77 community-living persons age 65 years and older.
Measurements
Participant ratings of length, attractiveness, trustworthiness, and reactions to reports and brochures.
Results
The expert system assessed participants’ readiness to engage in each of 4 ACP behaviors: completion of a living will, naming a health care proxy, communication with loved ones about quality versus quantity of life, and communication with clinicians about quality versus quantity of life. The system also assessed pros and cons of engagement, and values/beliefs that influence engagement. The system provided individualized feedback based on the assessment, with brochures providing additional general information. Initial participant review indicating unacceptable length led to revision of feedback reports from full-sentence paragraph format to bulleted format. After review, the majority of participants rated the materials as easy to read, trustworthy, providing new information, making them more comfortable reading about ACP, and increasing interest in participating in ACP.
Conclusion
An expert system individualized feedback report and accompanying brochure to promote ACP engagement was highly acceptable and engaging to older persons. Additional research is necessary to examine the effects of these materials on actual behavior change.