- 1Shanghai Fifth People's Hospital, Affiliated to Fudan University, Shanghai, China
- 2Center of Community-Based Health Research, Fudan University, Shanghai, China
- 3Shanghai Chest Hospital, Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
- 4School of Nursing and Health, Zhengzhou University, Zhengzhou, China
Background: Advance care planning (ACP) has emerged as a structured process to honor participants’ autonomy in medical decision-making. Evidence indicates that participation in ACP among community-dwelling older adults with chronic conditions is associated with enhanced medical autonomy, improved quality of life, and reduced decisional burden for family caregivers. However, given cultural nuances specific to China, ACP implementation remains limited and underinvestigated, underscoring the necessity of feasibility studies to guide subsequent research and practice.
Design: A 6-week feasibility randomized controlled trial was conducted in community settings, with 44 older adults enrolled in Zhengzhou, China. Methods: A randomized controlled design was employed. A total of 44 community-dwelling older adults with chronic diseases meeting the inclusion criteria were recruited and randomly assigned to either the intervention group (n = 22) or the control group (n = 22). The intervention, delivered between August and September 2024, consisted of a Trans-theoretical Model (TTM)-guided program designed to enhance ACP participation. Data were collected at four time points: baseline (T0), immediately post-intervention (T1), 1-month follow-up (T2), and 3-month follow-up (T3) with validated questionnaires used to assess ACP knowledge, attitudes, and participation. Statistical analyses were performed using SPSS 26.0, with primary outcomes including scores for ACP knowledge, attitudes, and participation to evaluate intervention efficacy.
Results: Of the 44 enrolled participants, 4 were lost to follow-up, resulting in an attrition rate of 9.1% and a final sample size of 40. At baseline, all participants were in the precontemplation stage of ACP engagement. Immediately post-intervention, behavioral changes toward ACP participation were demonstrated by 17 participants (85%) in the intervention group. The intervention group exhibited significantly higher scores in ACP knowledge, attitudes, and participation at T1, T2, and T3 (all p < 0.001). For participation scores, significant effects were observed for group (Wald χ2 = 25.965, p < 0.001), time (Wald χ2 = 454.226, p < 0.001), and group time interaction (Wald χ2 = 504.720, p < 0.001).
Conclusion: The TTM-based ACP intervention shows promise in potentially improving ACP knowledge, attitudes, self-efficacy, and readiness among community-dwelling older adults with chronic diseases in this feasibility trial. Further research is warranted to highlight the need for larger-scale, multi-center trials with follow-up to further validate the intervention’s efficacy.
Introduction
Amidst accelerating demographic aging and rapid technological advancement, the healthcare industry is facing both unprecedented opportunities and complex challenges (1). The issue of overtreatment among participants with end-stage chronic diseases has become increasingly pronounced (2). This not only fails to enhance participants’ quality of life but also exacerbates the physical, psychological, and economic burdens on their families (3). Studies indicate that approximately 1/3 of participants wish to discuss their future medical and nursing-related decisions with family members and healthcare providers, hoping to obtain secure their understanding (4); however, most are unable to fulfill this desire. Advance care planning (ACP) serves as an effective solution to this predicament. It is defined as a process that enables adults of any age or health status to share their personal values, future medical preferences, and care goals (5). ACP comprises three core elements: (1) Surrogate Decision Makers (SDM); (2) discussions regarding personal values and preferences for future medical options; (3) Advance Directives (ADs) (6). Research has confirmed that ACP not only protects participants’ medical autonomy but also helps individuals receive care aligned with their treatment and nursing -related preferences, thereby improving their future quality of life (7). Currently, ACP is primarily implemented among end-stage participants in hospital settings, with demonstrated effectiveness. Nevertheless, clinical practice reveals that the old end-stage participants have lost their decision-making capacity, rendering ACP discussions untimely (8). Consequently, the intervention target population for intervention has shifted from hospitals to communities.
In 2014, the American Medical Association (AMA) proposed that older adult community residents are an important target group for promoting the development of ACP from the perspectives of sustainability, cost-effectiveness, and social diffusion (9). Currently, relevant studies have confirmed the effectiveness of ACP interventions in older adult participants with chronic diseases (10, 11). Discussions with older adults focused on end-of-life medical care have been shown to alter their attitudes toward ACP and increase the signing rate of advance directives (12, 13). As research advances, an increasing number of scholars recognize that ACP constitutes a health behavior, and the Trans-theoretical Model (TTM) can reflect stages of individual behavior, enabling more scientific evaluation of ACP participation and providing a theoretical basis for stage-based changes in ACP behavior (14). Therefore, the stage-based behavioral changes described by TTM provide a novel approach to evaluating and enhancing ACP participation. The research team led by Fried from Yale University has continuously focused on the application of TTM-based ACP (ACP-T) intervention programs in community settings, with results demonstrating that TTM interventions facilitate changes in participants’ ACP behaviors (15). Sudore et al. conducted several randomized controlled trials investigating the impact of the “PREPARE website”—developed based on TTM—on the signing rate of ACP participation among older adults (16). The patient-facing PREPARE program increased documentation of advance care planning and patient-reported engagement in ACP (17). ACP-T programs are increasingly utilized among older adult participants to promote ACP implementation.
Background
In China, shaped by traditional cultural norms and filial piety values, family members of participants commonly adopt a medical orientation centered on maximizing the patient’s lifespan (18). Studies have shown that Chinese participants and their families have a low consistency in AD (19). Intensive life-sustaining interventions are frequently opted for, which, paradoxically, lead to compromised quality of life for the participants (20, 21). As the hierarchical healthcare system evolves, community medical institutions have been providing appropriate, comprehensive, and continuous nursing interventions and support to participants, facilitating a gradual transition of treatment settings from hospitals to communities for individuals with chronic conditions (22). Communities have emerged not only as pivotal healthcare service hubs for older adults with chronic diseases but also as increasingly critical venues for ACP implementation (23). In 2021, Thailand’s Office of the National Health Commission launched ACP and formed two key bodies: one tasked with creating a national ACP form and standard operating procedures, and another steering committee to oversee ACP’s nationwide rollout in community (24). Among respondents in Singapore, those who participated in ACP-related activities (e.g., making a will, establishing a lasting power of attorney, sharing end-of-life care preferences with physicians, or communicating such wishes to family/loved ones) had significantly higher ACPES scores (25). Consequently, leveraging communities as the platform for ACP development in China confers distinct advantages. However, currently, ACP implementation in China is primarily conducted among participants with severe diseases such as cancer. To date, no systematic ACP-T intervention has been implemented among community-dwelling older adults. The ACP-T intervention lies in its targeted approach to addressing the critical gap in systematic, community-focused ACP implementation. The primary contribution of The TTM-based ACP intervention lies in its targeted approach to addressing the critical gap in systematic, community-focused ACP implementation. By tailoring interventions to individuals’ dynamic readiness stages for behavior change, it effectively overcomes the limitations of one-size-fits-all strategies prevalent in traditional ACP efforts, thereby strengthening the consistency of care preferences between older adults and their families. This not only helps reduce the overuse of clinically unnecessary life-sustaining treatments that undermine quality of life but also facilitates person-centered end-of-life care aligned with patients’ authentic wishes. Additionally, it enriches practical models for community-based ACP implementation.
Objectives
The study aimed to evaluate the effects of an ACP-T intervention of community-dwelling older adults in China, with objects on stage of the ACP behavior change of the intervention group. And whether the intervention remains effective over time. Additionally, the study investigated the effect of the ACP-T on:
• The ACP knowledge of the older people
• The ACP attitude of the older people
• The ACP engagement of older people
Methods
Study design
A prospective, parallel-group, randomized controlled trial conducting a 6-week ACP intervention was conducted in Zhengzhou, China, from August 2024 to September 2024. The study flowchart is presented in Figure 1. This study was approved by the Institutional Review Board of Zhengzhou University (No. ZZUIRB2024-21). All participants provided written informed consent prior to enrollment. The intervention was aligned with the CONSORT checklist for reporting randomized trials.
Setting and participants
We recruited community-dwelling old patients with chronic diseases from Zhengzhou. Recruitment information was disseminated via community channels. During the eligibility screening phase, older adult individuals self-assessed their eligibility (i.e., having one or more chronic diseases) and then registered to participate; their chronic disease status was subsequently verified using medical records. Two research assistants initially recruited 80 patients, and after screening against the inclusion and exclusion criteria, 44 eligible and willing participants were selected. The study flowchart is presented in Figure 1. A computer-generated random number method was employed by the research assistants who were responsible only for recruiting and grouping older adults without participating in the subsequent intervention. Using the SPSS computerized random number generator, these 44 patients were evenly allocated to two groups: one designated as the intervention group and the other as the control group. This study was conducted in communities under the jurisdiction of a community health service center in Zhengzhou, which were coordinated by the project leader.
Participants were eligible for inclusion if they met the following criteria: (1) Aged 60 years or older; (2) With at least one chronic disease; (3) With clear consciousness; (4) Without communication, reading, or writing difficulties. Exclusion criteria included: (1) Individuals with cognitive impairment relied on medical records; (2) Individuals with functional or organic mental disorders. All participants provided written informed consent prior to enrollment.
Sample size
In the present study, the ACP participation score was used as the primary outcome measure. Sample size was estimated using the “two-sample mean comparison” method, with the formula: n = 2[(uα + uβ) σ] 2 /δ2. For α = 0.05 (two-tailed) and β = 0.10, the corresponding values were uα = 1.96 and uβ = 1.282., the corresponding values were uα = 1.96 and uβ = 1.282. Based on preliminary survey data from our research team, the mean ACP participation score among participants was 48.20 ± 12.75, with an estimated standard deviation (σ) of 12.75 and a projected mean difference (δ) of 17 between the two groups. Considering a 20% attrition rate and practical communication barriers in the community—primarily driven by cultural and cognitive differences, such as traditional Chinese family values and low public awareness of ACP—the initial sample size was set at 22 participants per group, totaling 44 participants. Adhering to the methodological quality criteria for RCT design outlined by the Cochrane Collaboration, randomization was performed using computer-generated random numbers by the research assistants. Using SPSS 26.0 software, participants were randomly assigned to either the intervention group (n = 22) or the control group (n = 22).
Theoretical framework
The ACP intervention program developed in this study for community-dwelling older adults with chronic diseases is based on the Trans-theoretical Model (Figure 2), which encompasses four stages: precontemplation, contemplation, preparation, action (25).
Figure 2. Theoretical framework. This is the trans-theoretical framework of this ACP-T intervention.
Intervention
The research procedures were structured as follows: (1) A multidisciplinary team was established, composed of one project supervisor, three research team members, and four community healthcare providers, all tasked with implementing the intervention. (2) The community health service center was engaged to recruit older adults with chronic diseases. Eligible participants were identified, provided with written informed consent, and completed the baseline assessment (T0). (3) A standardized one-week ACP training program was delivered to the intervention team to ensure proficiency in ACP communication skills and adherence to the protocol. (4) Intervention Implementation: The six-week ACP-T intervention commenced in August 2024, following the training completion.
The Intervention Group (IG) mainly includes Group lectures and Individual Interviews. The group Lectures focus on ACP knowledge education combined with PPT presentations and video screenings; Individual Interviews cover topics such as patients’ disease experiences, life values, and medical decision-making preferences. Motivational interviewing strategies were adopted to guide patients in in-depth participation in ACP discussions. Participants in the Intervention Group received the ACP-T intervention (see Table 1). ACP brochures are provided throughout the 1st to 6th interventions; and the document My Five Wishes is distributed during the final intervention. During the pre-intention stage (Week 1), ACP knowledge manuals were distributed to deliver foundational information on ACP, aimed at enhancing participants’ cognitive understanding of the concept. In the contemplation stage (Weeks 2–3), educational videos were shown to illustrate the concept of dignified death within the Chinese cultural context, supplemented by detailed explanations of ACP medical decision-making processes and participation protocols. During the preparation stage (Weeks 4–5), individual one-on-one interviews were conducted, where participants were encouraged to share their disease experiences through discussions of illness-related symptoms and distress. This approach was designed to strengthen their self-efficacy in ACP participation. In the action stage (Week 6), social support was provided to clarify pathways for ACP engagement, with Advance Directives (ADs) documents distributed and their completion documented.
The Control Group (CG) received a 6-week conventional ACP educational intervention focused on the theme of “Choice and Dignity,” administered via group lectures. These lectures combined PPT presentations and screenings of videos about “My Five Wishes,” totaling 6 sessions (one session per week) with each session lasting 40 min.
Concurrently, throughout the implementation of the ACP-T intervention, researchers and nursing staff remained on-site to conduct observations, with the goals of promptly identifying potential risks and safeguarding participant safety. No adverse events or unintended effects were reported in either the intervention or control group throughout the study period.
Outcome measurements
Advance care planning questionnaire, ACPQ
This scale was used to assess participants’ ACP knowledge and attitudes. The questionnaire consists of 4 sections with a total of 58 items (26): (1) Demographic data: 7 items; (2) Health information questionnaire: 2 items; (3) ACP knowledge questionnaire: 6 items covering content such as ACP, surrogate decision-makers, end-of-life decision-making, advance directives, power of attorney, and access channels; (4) ACP attitude questionnaire: 43 items. Among them, 27 items use a 2-option format (“Yes”/"No”) to evaluate willingness; the ACP attitude score comprises 16 items utilizing a 5-point Likert scale, with scores ranging from 1 (“strongly disagree”) to 5 (“strongly agree”). The total score ranges from 16 to 80, with higher scores indicating more positive attitudes toward ACP. The Cronbach’s α coefficient for this questionnaire is 0.915.
Advance care planning engagement survey, ACPES
The Advance Care Planning Engagement Survey (ACPES) was used to assess ACP participation and stages of behavioral change among participants. The questionnaire focuses on four ACP themes (27): (1) Designating a medical surrogate decision-maker; (2) Life values; (3) Discussing ACP decisions with family members; (4) Discussing ACP with doctors. It measures participation throughout the entire ACP behavioral process across four dimensions: cognition, contemplation, self-efficacy, and readiness, using a 5-point Likert scale with scores ranging from 1 to 5. Higher scores indicate higher levels of participants’ ACP cognition, contemplation, self-efficacy, and readiness. The overall Cronbach’s α coefficient for the questionnaire is 0.817, the test–retest reliability is 0.846, and the Cronbach’s α coefficients for each dimension range from 0.606 to 0.881.
Data collection
The ACPQ and ACPES questionnaires were distributed to participants, with data collected at four specified time points: prior to intervention initiation (T0), immediately after the final intervention session (T1), one-month post-intervention (T2), and 3 months post-intervention (T3).
Data analysis
Questionnaire data were analyzed descriptively in SPSS software (Version 26). (1) Sociodemographic characteristics of the control and intervention groups were compared using descriptive statistics. (2) Descriptive statistics were used to analyze pre- and post-intervention changes in the intervention group’s participation behaviors. (3) Independent-samples t-tests, chi-square tests, Fisher’s exact tests, and Mann–Whitney U tests assessed group equivalence in ACP knowledge, attitudes, and participation. (4) Repeated measures ANOVA or generalized estimating equations (as appropriate) compared between-group differences in intervention effects on cognition, attitudes, and participation. This statement adheres to CONSORT principles for intervention research, ensuring readers can fully evaluate the rigor and reproducibility of the study’s analytical process.
Results
Baseline characteristics
A total of 44 community-dwelling older adults with chronic diseases were enrolled in this study. During the intervention period, 4 participants were lost to follow-up (2 in each group): in the Control Group (CG), 1 participant withdrew due to being unreachable (attributed to personal reasons) and 1 due to deterioration in their disease condition; in the Intervention Group, both lost participants dropped out due to hospitalization for treatment. This resulted in a final sample size of 20 participants per group (CG and Intervention Group) for the final analysis. The mean age of the intervention group was (66.95 ± 9.428) years, while that of the control group was (66.2 ± 6.040) years. Comparative analysis showed that baseline characteristics were balanced between the two groups, with no statistically significant differences (all p > 0.05), as detailed in Table 2. Comparisons of demographic characteristics between participants, no statistically significant differences were observed (all p > 0.05), suggesting minimal non-response bias.
Stage of the ACP behavior change of the intervention group
Figure 3 illustrates that prior to the intervention, all 20 participants in the intervention group were in the precontemplation stage. Of these, 17 participants (85%) exhibited behavioral changes: 6 participants (30%) transitioned to the contemplation stage, while 11 participants (55%) advanced to the preparation stage in terms of ACP participation.
Figure 3. Changes in participation behavioral stages. This is the changes in participation behavioral stages of the intervention group.
Comparison of ACP knowledge scores between the two groups
Analysis of ACP knowledge scores across time points revealed no significant difference between the two groups at T0 (before intervention) (p > 0.05). However, statistically significant differences in ACP knowledge scores were observed at T1, T2, and T3 (p < 0.05), as detailed in Table 3. For inter-group and intra-group effects at each time point, there was no statistically significant difference in ACP knowledge scores between the two groups (p < 0.001). Additionally, a significant interaction effect between time and group was identified for ACP knowledge scores in both groups (p < 0.01). This means that the effect of the time factor is related to the differences in the intervention content between groups, and the effect of the intervention factor on the ACP knowledge level scores varies with the passage of time.
Comparison of ACP attitude scores between the two groups
Comparisons of participants’ ACP attitude scores across time points revealed no significant difference between the two groups before intervention (p > 0.05). In contrast, at T1, T2, and T3, statistically significant differences in ACP attitude scores were observed between the two groups (p < 0.001), as presented in Table 4. The results showed that the ACP attitude scores of patients in both groups changed over time, and there was a significant interaction effect between time and group. Specifically, the ACP attitude scores of the intervention group were significantly higher than those of the control group.
Comparisons of ACP engagement scores between the two groups
Table 5 illustrates the comparative analysis of total scores for ACP participation between the two groups after intervention. Prior to intervention, no statistically significant difference was observed in total engagement scores between the two groups (p > 0.05). However, at time points T1, T2, and T3, significant differences were noted in the ACP attitude scores between the two groups (p < 0.001). Notably, a significant interaction effect between time and group was identified for ACP engagement scores among participants in both groups (p < 0.001). Additionally, the total ACP participation scores in both groups exhibited significant changes over time (p < 0.001). Time-related effects differed across groups; specifically, compared with participants in the Control Group (CG), those in the Intervention Group exhibited statistically significant improvements in scores for each dimension of ACP engagement as well as the total score (from baseline to post-intervention).
Discussion
The ACP-T intervention facilitates transitions in participants’ stages of ACP engagement behavior
In the present study, a total of 17 participants exhibited changes in their behavioral stages, with 6 progressing to the contemplation stage and 11 to the preparation stage. These findings demonstrate that the ACP-T intervention effectively promotes transitions in participants’ stages of ACP engagement behavior. Firstly, the ACP-T intervention is grounded in the Trans-theoretical Model of behavior change, which incorporates distinct stage-specific goals and intervention priorities (28). This theoretical foundation enables an in-depth understanding of participants’ diverse stages and needs throughout the process of behavioral change related to ACP engagement. By analyzing factors influencing participants’ behaviors at each stage, the present study developed targeted intervention strategies, thereby facilitating progression from the precontemplation stage to higher stages. For participants with limited ACP knowledge, this study enhanced their awareness and comprehension of advance care planning through knowledge manuals, PPT presentations, and motivational interviewing (29). ACP involves decisions made by participants prior to potential loss of medical decision-making capacity. Given that acute disease onset or re-trauma post-recovery is unforeseeable for participants, this study provided clinical scenarios through methods such as video presentations and case sharing. This approach enabled participants to recognize multiple ACP options for future medical care and enhanced their decision-making capacities (30, 31). Additionally, sharing successful cases was implemented to strengthen their confidence in successful ACP engagement, thereby increasing their participation level and motivation (32). In summary, the present study enhances participants’ involvement in medical decision-making by refining theoretical staging, improving engagement capabilities, and boosting self-efficacy.
The ACP-T intervention enhances participants’ ACP -related knowledge levels
Following the intervention, statistically significant differences in ACP knowledge scores were observed between groups, within each group, and for the interaction effect—findings confirming the intervention’s effectiveness in improving participants’ ACP knowledge. To promote participants’ comprehensive understanding of ACP, researchers first offered specialized knowledge support. Meanwhile, community healthcare providers leveraged their unique professional strengths—such as established community rapport, local authority, and public credibility—which further facilitated the effective dissemination and participants’ grasp of ACP-related information (33). Grounded in the TTM framework, the present study identified cognitive factors as the primary barriers in the pre-intention stage; accordingly, the goal of ACP intervention in this stage was defined as improving participants’ knowledge levels. Previous research has indicated that ACP-T interventions can enhance cancer participants’ understanding and acceptance of ACP, which plays a critical role in improving end-of-life quality of life (34, 35). In the present study, multiple approaches—including knowledge manuals, group lectures, and video-based education—were employed to enhance participants’ knowledge levels. Specifically, the Handbook of ACP Knowledge was used to reinforce and consolidate ACP knowledge. For group lectures, video and PPT presentations integrating text and images were utilized to deepen participants’ memory retention (32); additionally, community healthcare providers were involved in delivering ACP education to participants (36). By addressing participants’ needs for ACP knowledge and incorporating knowledge review, question-and-answer sessions, and interactive activities at each stage, the ACP-T intervention effectively improved participants’ ACP knowledge levels.
The ACP-T intervention improves participants’ attitudes toward ACP
The study results showed that after the intervention, statistically significant differences in ACP attitude scores were observed between the two groups (p < 0.001), with the intervention group exhibiting significantly higher scores than the control group. These findings indicate that ACP-T participation interventions effectively improve participants’ attitudes toward ACP. In this study, intervention content was linked to traditional Chinese cultural strengths, with communication strategies connecting ACP to Chinese filial piety culture and family values (37). This facilitates emotional resonance, enables participants to correctly understand the significance of ACP, alters their attitudes toward ACP, and promotes the conversion of their ACP behavioral intentions into active willingness. Through discussions with participants about their disease and medical experiences, their perceived needs for ACP were gradually identified. Accumulating evidence from existing studies has demonstrated that intervention programs rooted in the Theory of TTM not only help strengthen participants’ attitudes toward ACP — particularly among individuals diagnosed with cancer — but also contribute to a more adaptive perspective on death (38). In this study, motivational interviewing was integrated into communication strategies, primarily to align with the TTM stages for behavioral changes. A growing body of research has indicated that the application scope of motivational interviewing (MI) has gradually expanded—shifting from traditional inpatient settings to community-family integrated care contexts—and this expansion has been accompanied by demonstrated effectiveness in relevant interventions (39). The intervention enabled older adult participants to perceive ACP benefits, prompting further reflection and thereby promoting their engagement in ACP.
The ACP-T intervention can enhance participants’ ACP participation
After the intervention, statistically significant differences in total ACP engagement scores were observed between groups, within each group, and for the interaction effect, indicating that the intervention facilitates improved ACP engagement among participants. ACP knowledge levels form the foundation for enhancing engagement. Based on TTM, the intervention program was divided into four distinct stages, with an emphasis on providing tailored information and education at different stages to enhance individuals’ ACP awareness. Personal reflection and decision-making processes are crucial for behavioral change (34). This study utilized diverse intervention formats. Through ACP knowledge explanations, video viewing, case discussions, and exchanges of medical experiences, participants were supported in conducting in-depth reflection on ACP and clarifying their future medical care needs (40). Meanwhile, enhancing self-efficacy is a key factor in promoting ACP engagement (41). In this study, the specific document My Five Wishes was provided to help individuals better understand and navigate the ACP development process. One-on-one motivational interviews were conducted from the 4th to the 6th week of the study, which helped to improve participants’ perceived benefits and strengthen their understanding of ACP (42). In summary, this study can collectively enhance participants’ participation by improving their knowledge, reflection, self-efficacy, and readiness.
Acceptability and promotability of the ACP-T intervention
The ACP-T intervention in this study has acceptability. Firstly, the TTM theoretical framework in this study provides stage-specific guidance for participants’ ACP engagement. It offers tailored guidance and support based on the distinct stages participants undergo during ACP engagement, facilitating their gradual involvement. Studies have shown that employing scientific methods helps verify effectiveness and feasibility, enhances program credibility, and thereby facilitates participant acceptance (43). This study considers social adaptability and communicates with participants through the concepts of filial piety and family values to generate emotional resonance, thereby enhancing program acceptance. The intervention content primarily involves ACP-related education and is not restricted to specific disease areas. Thus, ACP-T exhibits universal applicability to older adult participants with chronic diseases. This helps reduce family decision-making conflicts and the waste of medical resources, alleviates social pressure and family burdens, and yields significant social benefits (44), thereby enhancing its promotability in community settings.
Strengths and limitations
In China, current ACP interventions have predominantly centered on participants’ knowledge, attitudes toward death, and related domains, with insufficient attention devoted to ACP engagement. The present study integrates four core dimensions- specifically knowledge, reflection, self-efficacy, and readiness – to incrementally enhance ACP engagement, thereby enriching the evaluative content of ACP clinical practice. The ACP-T program developed in this study harnesses community resources—specifically including healthcare staff from primary care institutions and professional social workers—to deliver comprehensive and continuous medical care services to participants. Concurrently, it is closely aligned with the Theory of TTM; by developing stage-matched intervention strategies tailored to participants’ current readiness levels, the program further facilitates a progressive enhancement in participants’ engagement with ACP. Due to constraints related to human resources, research duration, and other objective factors, the source population of the study was limited, resulting in low sample heterogeneity and insufficient representativeness. However, several limitations of the present study should be explicitly acknowledged. First, the small final sample size (n = 40) may have compromised statistical power, potentially limiting the reliability of the observed results. Second, the single-center study design imposes constraints on the generalizability of the findings to more diverse Chinese community populations. Third, the short follow-up duration (3 months) precludes the ability to draw conclusions regarding the intervention’s long-term efficacy. Despite these limitations, the preliminary findings of this study provide initial evidence supporting the feasibility of implementing such interventions in community health settings. They further underscore the necessity of conducting larger-scale, multi-center trials with extended follow-up periods to validate the intervention’s efficacy more rigorously.
Implications for research and practice
In the Chinese context, this study developed an ACP-T intervention specifically tailored for community-dwelling older adults with chronic conditions. Beyond providing actionable guidance for primary healthcare institutions, this intervention supports three key objectives: the integration of community resources, the establishment of ACP service pathways, and the exploration of patients’ medical preferences and quality-of-life needs—while simultaneously addressing existing cultural and systemic barriers. The ACP-T intervention is conducive to integrating community resources, assisting community hospitals in establishing ACP service pathways, and exploring the needs of Senior community participants regarding future medical preferences, care goals, and quality of life.
Practically, community health workers (CHWs) and primary care teams can integrate ACP promotion into their routine clinical workflows. For instance, during follow-up consultations for patients with chronic conditions, they may distribute ACP educational brochures and conduct preliminary ACP assessments. Furthermore, the use of culturally adapted resources—such as family-oriented discussion guides—can help alleviate taboos surrounding end-of-life discussions. Equally importantly, collaboration with local community-based organizations to deliver phased ACP education programs is essential to enhance reach and acceptance. This comprehensive strategy not only addresses key cultural and systemic barriers but also strengthens the long-term sustainability of ACP initiatives within community healthcare contexts.
Conclusion
The ACP-T program developed in this study can leverage community resources to provide care-related support for participants, with the potential to facilitate continuous service delivery. In this feasibility trial, the preliminary implementation of the intervention program demonstrated promising effects in improving the target population’s knowledge of, attitudes toward, and engagement in ACP. These findings provide initial insights into the program’s potential applicability within community-based settings. Notably, by enhancing participants’ ACP engagement, the program may facilitate respect for their medical autonomy; however, claims regarding its broader impacts—such as the alleviation of social pressure or family care burdens—were not directly assessed in this study and thus require cautious interpretation. While these preliminary observations suggest potential benefits of the program, they necessitate further validation in larger-scale, multi-center trials. Additionally, the program’s value should be contextualized within the inherent limitations of this feasibility study.
Data availability statement
The original contributions presented in the study are included in the article/supplementary material, further inquiries can be directed to the corresponding author.
Ethics statement
The studies involving humans were approved by Approval was granted by the Institutional Review Board of Zhengzhou University (Reference No. ZZUIRB2024-21; approved on January 24, 2024). The studies were conducted in accordance with the local legislation and institutional requirements. The participants provided their written informed consent to participate in this study.
Author contributions
SF: Software, Investigation, Writing – review & editing, Formal analysis, Validation, Methodology, Data curation, Writing – original draft, Supervision, Project administration, Conceptualization. MZ: Conceptualization, Investigation, Writing – original draft, Writing – review & editing, Software. JC: Data curation, Investigation, Writing – review & editing, Software. YZ: Data curation, Writing – review & editing, Supervision, Methodology. XZ: Supervision, Data curation, Methodology, Writing – review & editing. XW: Validation, Writing – review & editing, Project administration, Formal analysis. BQ: Writing – review & editing, Formal analysis, Project administration, Validation.
Funding
The author(s) declare that no financial support was received for the research and/or publication of this article.
Acknowledgments
The authors greatly appreciate all the participants in this study. We thank our researchers, XZ, YZ, XW, and BQ, for the data collection and analysis. We thank Zhengzhou University for their collaboration and support.
Conflict of interest
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
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The authors declare that no Gen AI was used in the creation of this manuscript.
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Keywords: the Trans-theoretical Model, advance care planning, older adults, chronic disease, aging
Citation: Feng S, Chen J, Zhao M, Zhuo Y, Zhao X, Wang X and Qiao B (2025) Feasibility and acceptability of the Trans-theoretical Model-based advance care planning for community-dwelling older adults with chronic diseases in China: a randomized controlled trial. Front. Public Health. 13:1686912. doi: 10.3389/fpubh.2025.1686912
Edited by:
Carlos Laranjeira, Polytechnic Institute of Leiria, PortugalReviewed by:
Manoj Kumar, University of Wollongong in Dubai, United Arab EmiratesPatricia Coelho, Escola Superior de Enfermagem do Porto, Portugal
Dongpo Song, Jilin University, China
Copyright © 2025 Feng, Chen, Zhao, Zhuo, Zhao, Wang and Qiao. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
*Correspondence: Mingli Zhao, bWluZ2xpLnpoYW9AcXEuY29t
‡ORCID: Mingli Zhao, orcid.org/0009-0009-5745-8905
†These authors have contributed equally to this work and share first authorship
Jufeng Chen3†