Measuring engagement in advance care planning: a cross-sectional multicentre feasibility study

Testing the What Matters to Me workbook in a diverse sample of seriously ill patients and caregivers

Objectives

We evaluated the What Matters to Me Workbook, a patient-facing version of the Serious Illness Conversation Guide co-created by Ariadne Labs and The Conversation Project.

Methods

We purposively recruited diverse seriously ill patients and caregivers in the US. Participants completed the Workbook, a survey, and a semi-structured in-depth interview about their experience. Qualitative analysis of interviews and notes was employed to extract themes. Simple descriptive statistics were employed to analyze eight investigator authored questions.

Results

Twenty-nine study participants completed twenty-one interviews and twenty-five surveys. Ratings for safety (3.87/4, SD = 0.43) and acceptability (3.59/4, SD = 0.956) were higher than ratings for ease of use (3.30/4, SD = 0.97) and usefulness (3.24/4, SD = 0.80). Qualitative analysis identified that while the workbook was safe, acceptable, easy to use, and useful, it is more important who is recommending it and how they are explaining it.

Conclusion

If presented in the right way by a trustworthy person, the What Matters to Me Workbook can be an easy to use, useful, and safe resource for patients with serious illness and their caregivers.

Innovation

The Workbook focuses on serious illness rather than end-of-life and meshes with a clinician-facing conversation guide and a health-system level intervention.

Development and validation of a subjective end-of-life health literacy scale

Personal health literacy is the ability of an individual to find, understand, and use information and services to inform health-related decisions and actions for oneself and others. The end of life is commonly characterized by the occurrence of one or several diseases, the use of many different types of healthcare services, and a need to make complex medical decisions that may involve challenging tradeoffs, such as choices between quality and length of life. Although end-of-life care issues concern most people at some point in life, individuals' competencies to deal with those questions have rarely been explored. This study aims to introduce, develop, and validate an instrument to measure individuals' self-assessed competencies to deal with end-of-life medical situations, the Subjective End-Of-Life Health Literacy Scale (S-EOL-HLS), in a sample of older adults aged 50+ living in Switzerland who participated in wave 8 (2019/2020) of the Survey of Health, Ageing, and Retirement in Europe. The S-EOL-HLS uses a series of questions on self-rated difficulties in understanding end-of-life medical jargon, defining in advance which end-of-life medical treatments to receive or refuse, and communicating related choices. Aside from conducting exploratory and confirmatory factor analysis to evaluate the construct validity, we compared measurements from the S-EOL-HLS to respondents' general health literacy measured with the European Health Literacy Survey questionnaire. We obtained a three-factor model with acceptable fit properties (CFI = 0.993, TLI = 0.992, RMSEA = 0.083, SRMR = 0.061) and high reliability (α = 0.93). The partial associations between the health literacy scores from the two scales and respondents' sociodemographic characteristics were similar; however, individuals with higher end-of-life health literacy scores appeared to have more positive attitudes towards end-of-life care planning outcomes. The S-EOL-HLS demonstrates reliable and consistent results, making the instrument suitable for older adults in population surveys.

Educational Resources and Self-Management Support to Engage Patients in Advance Care Planning: An Interpretation of Current Practice in the US

BACKGROUND

Educational resources and decision aids help patients, their care partners and health care providers prepare for and confidently engage in Advance Care Planning (ACP). Incorporating ACP resources as part of a self-management approach may lead to fuller engagement with ACP beyond identifying a surrogate decision-maker, towards supporting a person to identify their values and goals and to communicate them with their care partners and health care providers.

OBJECTIVE

To examine the use of educational resources and decision aids to support self-management of ACP in 11 health systems across the US.

METHODS

This study was a qualitative interview study examining barriers and facilitators to ACP. Guided by interpretative description and the chronic care model, we sought to describe how health care stakeholders (clinicians and administrators) and patients use ACP resources to support engagement with ACP.

RESULTS

274 health care stakeholders were interviewed, and 7 patient focus groups were conducted across 11 health systems. The majority of participants reported using resources to support completion of preference documentation, with fewer participants using resources that promote more engagement in ACP. ACP resources were reported as valuable in preparing for and complementing a complex, interpersonal, and interprofessional process. Barriers to using resources included a lack of a defined workflow and time.

CONCLUSION

Our data suggest that ACP resources that promote engagement are valued but under-utilized in practice. The use of ACP resources with an inter-professional team and a self-management approach is a promising strategy to mitigate the barriers of ACP implementation while improving engagement in ACP.

Complex advance care planning interventions for chronic serious illness: how do they work: a scoping review

CONTEXT

Advance care planning (ACP) interventions have the potential to improve outcomes for patients with chronic serious illness. Yet the rationale for outcome choices and the mechanisms by which outcomes are achieved are not always clear.

OBJECTIVES

To identify and map proposed mechanisms on how complex ACP interventions can impact outcomes for patients with chronic serious illness and to explore factors that might explain intervention outcomes.

METHODS

This is a scoping review of randomised controlled trials of complex ACP interventions for patients with chronic serious illness which explicitly stated the mechanism(s) by which the intervention was thought to work. We searched six databases and hand-searched key journals and reference lists.

RESULTS

Inclusion yielded 16 articles. Inclusion procedures and mapping of mechanisms and outcomes indicated that causality between components and outcomes was not always clearly described. Tailoring intervention content to patients' needs was linked to the greatest number of different outcome categories, while promoting competence and confidence to engage in ACP was most often explicitly linked to a primary outcome. Three main factors which might have affected intended outcomes were identified: participant characteristics, such as illness experience or cultural differences; the setting of implementation; or methodological limitations of the study.

CONCLUSION

Findings highlighted two main points of consideration for future ACP intervention studies: the need for clearly stated logic in how interventions are expected to impact primary outcomes and the importance of considering how an intervention may function for patients with chronic serious illnesses within a specific setting.

Spanish Cross-Cultural Adaptation and Psychometric Properties of the Advance Care Planning Self-Efficacy: A Cross-Sectional Study

Background: Perceived self-efficacy in advance care planning (ACP) is frequently used to measure the impact of ACP programs for professionals responsible for advanced chronic patients. A validated ACP Self-Efficacy (ACP-SE) scale is not currently available in Spanish. Objective: To culturally adapt and validate Baughman's ACP-SE scale into Spanish (ACP-SEs). Methodology/Design: An instrumental study was performed in two phases: (1) cultural adaptation of the ACP-SE scale and (2) psychometric properties measurement. Setting/Participants: The survey was sent to 5785 professionals: physicians, nurses, psychologists, and social workers, members of scientific associations in the areas of primary care, geriatrics, and palliative care in Catalonia, Spain. Results: Five hundred thirty-eight questionnaires were obtained, respondents were physicians (69.0%) and nurses (28.4%) and mean age was 47 years (standard deviation [SD] = 10.1). Most were women (79.6%), 68% had >15 years of professional experience, and 80.7% worked in primary care. Internal consistency was high (Cronbach's alpha = 0.95) and showed a unidimensional structure explaining 56.2% of total variance. Mean score was 67.37 (SD = 16.1). Variables associated with greater self-efficacy were previous training (t = -3.23, df = 273.76, p = 0.001), previous participation in ACP processes (t = -6.23, df = 521, p < 0.001), and membership in geriatric or palliative care scientific association (p < 0.001). ACP-SEs positively correlated to other compared scales. Conclusion: The ACP-SE scale demonstrates adequate psychometric properties. This is the first self-efficacy scale for ACP in Spanish. It should facilitate a better understanding of implementation processes related to ACP programs for professionals involved in caring for patients with advanced diseases.

Effect of "Speak Up" educational tools to engage patients in advance care planning in outpatient healthcare settings: A prospective before-after study

BACKGROUND

Tools for advance care planning (ACP) are advocated to help ensure patient values guide healthcare decisions. Evaluation of the effect of tools introduced to patients in clinical settings is needed.

OBJECTIVE

To evaluate the effect of the Canadian Speak Up Campaign tools on engagement in advance care planning (ACP), with patients attending outpatient clinics. Patient involvement: Patients were not involved in the problem definition or solution selection in this study but members of the public were involved in development of tools. The measurement of impacts involved patients.

METHODS

This was a prospective pre-post study in 15 primary care and two outpatient cancer clinics. The outcome was scores on an Advance Care Planning Engagement Survey measuring Behavior Change Process on 5-point scales and Actions (0-21-point scale) administered before and six weeks after using a tool, with reminders at two or four weeks.

RESULTS

177 of 220 patients (81%) completed the study (mean 68 years of age, 16% had cancer). Mean Behavior Change Process scores were 2.9 at baseline and 3.5 at follow-up (mean change 0.6, 95% confidence interval 0.5 to 0.7; large effect size of 0.8). Mean Action Measure score was 3.7 at baseline and 4.8 at follow-up (mean change 1.1, 95% confidence interval 0.6-1.5; small effect size of 0.2).

PRACTICAL VALUE

Publicly available ACP tools may have utility in clinical settings to initiate ACP among patients. More time and motivation may be required to stimulate changes in patient behaviors related to ACP.

Advance care planning in Dutch primary care: a pre/post-implementation study

BACKGROUND

Despite known advantages of advance care planning (ACP) and a positive attitude towards ACP by older people living in the community and general practitioners (GPs), such conversations are not yet commonplace in GP practices.

AIM

To implement ACP as part of routine care in general practice and thereby increasing the number of ACP conversations and advance directives; to investigate characteristics of older people with and without an ACP conversation.

METHODS

(1) A pre-evaluation and post-evaluation study using questionnaire data from people aged 75 years or older living in the community. (2) A prospective study using data provided by healthcare professionals (people they started an ACP conversation with).

RESULTS

After implementation of ACP, significantly more people had spoken to their GP about hospitalisations, intensive care admission and treatment preferences in certain circumstances, compared with before. Advance directives were drawn up more often. People who had an ACP conversation were older, have had a cerebrovascular accident, had a clear idea about future health problems, had a preference to start ACP before they were ill, already had an ACP conversation at pre-measurement and indicated at pre-measurement that their GP knows their preferences.

CONCLUSION

Results in number of ACP conversations and advance drectives were modest but positive. ACP was implemented as routine care. GPs select people with whom they have a conversation. This can be an efficient use of time, but there is a risk that certain groups may be underserved (for example, patients with multimorbidity or patients with less health skills).

Effect of an Interactive Website to Engage Patients in Advance Care Planning in Outpatient Settings

PURPOSE

Online programs may help to engage patients in advance care planning in outpatient settings. We sought to implement an online advance care planning program, PREPARE (Prepare for Your Care; http://www.prepareforyourcare.org), at home and evaluate the changes in advance care planning engagement among patients attending outpatient clinics.

METHODS

We undertook a prospective before-and-after study in 15 primary care clinics and 2 outpatient cancer centers in Canada. Patients were aged 50 years or older (primary care) or 18 years or older (cancer care) and free of cognitive impairment. They used the PREPARE website over 6 weeks, with reminders sent at 2 or 4 weeks. We used the 55-item Advance Care Planning Engagement Survey, which measures behavior change processes (knowledge, contemplation, self-efficacy, readiness) on 5-point scales and actions relating to substitute decision makers, quality of life, flexibility for the decision maker, and asking doctors questions on an overall scale from 0 to 21; higher scores indicate greater engagement.

RESULTS

In total, 315 patients were screened and 172 enrolled, of whom 75% completed the study (mean age = 65.6 years, 51% female, 35% had cancer). The mean behavior change process score was 2.9 (SD 0.8) at baseline and 3.5 (SD 0.8) at follow-up (mean change = 0.6; 95% CI, 0.49-0.73); the mean action measure score was 4.0 (SD 4.9) at baseline and 5.2 (SD 5.4) at follow-up (mean change = 1.2; 95% CI, 0.54-1.77). The effect size was moderate (0.75) for the former and small (0.23) for the latter. Findings were similar in both primary care and cancer care populations.

CONCLUSIONS

Implementation of the online PREPARE program in primary care and cancer care clinics increased advance care planning engagement among patients.

A Retrospective Study Reviewing Interprofessional Advance Care Planning Group Discussions in Pulmonary Rehabilitation: A Proof-of-Concept and Feasibility Study

Background:

Advance care planning (ACP) is a process of reflection and discussion wherein a patient, in consultation with a health-care provider, family, and/or loved ones, clarifies values and treatment preferences and establishes goals, including a plan for end-of-life (EOL) care. Advance care planning encompasses appreciating and understanding illness and treatment options, elucidating patient values and beliefs, and identifying a substitute decision maker (SDM) or designating a power of attorney (POA) for personal care. These discussions have proven to be effective in improving patient–family satisfaction, reducing anxiety regarding EOL care in patients and family members, and improving patient-centered care by empowering patients to direct their care at EOL. However, ACP conversations are often difficult to have due to the sensitive nature of such discussions.

Objective:

The aim of this study was to determine whether group facilitation for teaching and discussing ACP enhances participants’ understanding of ACP and allows them to feel comfortable and supported when discussing these sensitive issues.

Methods:

Patients who were registered in North York General Hospital’s (NYGH) pulmonary rehabilitation program from June 2016 until August 2017 were given the opportunity to attend two 1-hour sessions related to ACP. The first session was dedicated to educating patients on ACP, explaining the hierarchy of the SDM and the role of the POA for personal care. The second session, provided a short time later, was devoted to discussions of values, wishes, fears, and trade-offs for future medical and EOL care. These discussions led by the supportive care nurse practitioner and a physician who are members of the NYGH Freeman Palliative Care Team were held in a group-facilitated format. Anonymous feedback forms, including both qualitative and quantitative feedback, were completed by the participants and analyzed.

Participants:

Analysis of a sample of 30 participants who attended 1 or 2 of the ACP sessions revealed that 21 identified as female and 9 identified as male. The average age of the participants was 76 years.

Findings:

Participants felt the content was relevant to their needs and were comfortable asking questions with all feedback averages ranging from good to very good. Participants appreciated the opportunity to share their thoughts in an open and interactive format.

Conclusion:

Discussing issues relevant to ACP, including providing information about ACP, sharing fears, wishes, and tradeoffs, were well-received in a group-support environment. Future studies should assess the impact of ACP group discussion on the individual, such as identifying a POA, having discussions regarding wishes and values with the SDM/POA, and examining the clinical impact of such sessions.

Brief English and Spanish Survey Detects Change in Response to Advance Care Planning Interventions

CONTEXT

The validated 82-item Advance Care Planning (ACP) Engagement Survey measures a broad range of ACP behaviors but is long.

OBJECTIVES

Determine whether shorter survey versions (55-item, 34-item, 15-item, 9-item, and 4-item versions) can detect similar change in response to two well-validated ACP interventions and provide practical effect size information.

METHODS

We assessed ACP engagement for 986 English- and Spanish-speaking adults in a randomized trial of PREPARE vs. an advance directive-only study arms. The survey was administered at baseline, one week, three months, six months, and 12 months. We calculated mean change scores from baseline to follow-up time points by study arm, intraclass correlation coefficients of change scores between the 82-item survey with shorter versions, and within-group and between-group effect sizes of the mean change scores.

RESULTS

Shorter survey versions were able to detect within-group and between-group changes at all time points. Within-group intraclass correlations of the 82-item to shorter versions were high (0.78-0.97), and the amount of between-group differences was comparable using all survey versions. Twelve-month within-group effect sizes ranged narrowly from 0.76 to 1.05 for different survey versions in the PREPARE arm and from 0.44 to 0.64 for the advance directive-only version. Between-group effect sizes ranged narrowly from 0.24 to 0.30 for different survey versions. Results were similar when stratified by English and Spanish speakers.

CONCLUSION

Shorter versions of the ACP Engagement Survey were able to detect within-group and between-group changes comparable with the 82-item version and can be useful for efficiently and effectively measuring ACP engagement in research and clinical settings.

Community-based game intervention to improve South Asian Indian Americans' engagement with advanced care planning

Objective: Advance care planning (ACP) allows individuals to express their preferences for medical treatment in the event that they become incapable of making their own decisions. This study assessed the efficacy of a conversation game intervention for increasing South Asian Indian Americans' (SAIAs') engagement in ACP behaviors as well as the game's acceptability and cultural appropriateness among SAIAs. Design: Eligible community-dwelling SAIAs were recruited at SAIA cultural events held in central Texas during the summer of 2016. Pregame questionnaires included demographics and the 55-item ACP Engagement Survey. Played in groups of 3-5, the game consists of 17 open-ended questions that prompt discussions of end-of-life issues. After each game session, focus groups and questionnaires were used to examine the game's cultural appropriateness and self-rated conversation quality. Postintervention responses on the ACP Engagement Survey and rates of participation in ACP behaviors were collected after 3 months through phone interviews or online surveys. Data were analyzed using descriptive statistics, frequencies, and paired t-tests comparing pre/post averages at a .05 significance level. Results: Of the 47 participants, 64% were female, 62% had graduate degrees, 92% had lived in the U.S. for >10 years, 87% were first-generation immigrants, and 74% had no advance directive prior to the game. At the 3-month follow-up, 58% of participants had completed at least one ACP behavior, 42% had discussed end-of-life issues with loved ones, 15% did so with their healthcare providers, and 18% had created an advanced directive. ACP Engagement Survey scores increased significantly on all four of the process subscales by 3 months postgame. Conclusion: SAIA individuals who played a conversation game had a relatively high rate of performing ACP behaviors 3 months after the intervention. These findings suggest that conversation games may be useful tools for motivating people from minority communities to engage in ACP behaviors.

Advance care planning conversations with palliative patients: looking through the GP's eyes

Background

Although it is often recommended that general practitioners (GPs) initiate advance care planning (ACP), little is known about their experiences with ACP. This study aimed to identify GP experiences when conducting ACP conversations with palliative patients, and what factors influence these experiences.

Methods

Dutch GPs (N = 17) who had participated in a training on timely ACP were interviewed. Data from these interviews were analysed using direct content analysis.

Results

Four themes were identified: ACP and society, the GP’s perceived role in ACP, initiating ACP and tailor-made ACP. ACP was regarded as a ‘hot topic’. At the same time, a tendency towards a society in which death is not a natural part of life was recognized, making it difficult to start ACP discussions. Interviewees perceived having ACP discussions as a typical GP task. They found initiating and timing ACP easier with proactive patients, e.g. who are anxious of losing capacity, and much more challenging when it concerned patients with COPD or heart failure. Patients still being treated in hospital posed another difficulty, because they often times are not open to discussion. Furthermore, interviewees emphasized that taking into account changing wishes and the fact that not everything can be anticipated, is of the utmost importance. Moreover, when patients are not open to ACP, at a certain point it should be granted that choosing not to know, for example about where things are going or what possible ways of care planning might be, is also a form of autonomy.

Conclusions

ACP currently is a hot topic, which has favourable as well as unfavourable effects. As GPs experience difficulties in initiating ACP if patients are being treated in the hospital, future research could focus on a multidisciplinary ACP approach and the role of medical specialists in ACP. Furthermore, when starting ACP with palliative patients, we recommend starting with current issues. In doing so, a start can be made with future issues kept in view. Although the tension between ACP’s focus on the patient’s direction and the right not to know can be difficult, ACP has to be tailored to each individual patient.

Electronic supplementary material

The online version of this article (10.1186/s12875-018-0868-5) contains supplementary material, which is available to authorized users.

Improving a Full Range of Advance Care Planning Behavior Change and Action Domains: The PREPARE Randomized Trial

CONTEXT

Advance care planning (ACP) engagement includes a wide range of behaviors and actions related to discussions and documentation, yet few ACP intervention studies measure the full process.

OBJECTIVES

The objective of the study was to compare the effects of an easy-to-read advance directive (AD) versus an ACP web site plus the AD (PREPARE + AD) on Behavior Change Processes and Actions, including discussions and documentation.

METHODS

Secondary data were from a completed ACP trial. Participants were primary care patients, ≥60 years old, with two comorbidities. We used the validated ACP Engagement Survey to examine six-month change in subscales measuring Behavior Change Processes (knowledge, contemplation, self-efficacy, readiness) and Actions (decision makers, quality of life, flexibility for decision makers, asking clinicians questions), specifically related to discussions and documentation. We used adjusted mixed-effects linear models to compare mean change and engagement over time.

RESULTS

Compared to the AD-only, PREPARE + AD resulted in greater increases in all Behavior Change Processes subscales and Actions related to decision makers, quality of life, and flexibility (all P-values ≤0.005). Both interventions significantly increased the proportion of participants who engaged in ACP discussions (PREPARE + AD, 99.5%; AD-only, 93.3%) and documentation (PREPARE + AD, 99.5%; AD-only, 90.4%), with greater increases for PREPARE + AD (all P-values <0.001).

CONCLUSION

Both PREPARE plus an easy-to-read AD and an AD-only markedly increased ACP engagement in a full range of ACP behaviors, including discussions and documentation, and engagement was nearly 100% with PREPARE + AD. Future ACP studies should examine a full range of ACP behaviors beyond ADs and the impact of PREPARE and easy-to-read AD implementation on health care systems.

Patient Activation: A Key Component of Successful Advance Care Planning

Background: Patient activation-or knowledge, confidence, and skill managing overall health-is associated with improved health behaviors such as exercise; it is unknown whether it is associated with advance care planning (ACP). Objective: To determine whether patient activation is associated with ACP. Design: This is a cross-sectional study. Setting/Subjects: A total of 414 veterans (≥60 years) with serious and chronic illness enrolled in an ACP trial. Measures: Patient characteristics and self-report surveys included the validated 13-item patient activation measure (PAM, five-point Likert) (e.g., "Taking an active role in your own healthcare is the most important factor…") categorized into four levels (e.g., Level 1: "disengaged and overwhelmed" to Level 4: "maintaining behaviors"). ACP was measured with the ACP Engagement Survey including 57-item process scores (i.e., knowledge, contemplation, self-efficacy, readiness, 5-point Likert scale) and 25-item action scores (i.e., surrogate designation, yes/no items). Associations were determined with linear regression. Results: Participants were 71.1 ± 7.8 years of age, 43% were non-white, 9% were women, and 20% had limited health literacy. Higher PAM levels were associated with higher finances, having adult children, lower comorbidity, and more social support (p < 0.05). After adjusting for these characteristics, higher PAM (Level 4 vs. Level 1) was associated with higher ACP engagement (ACP process scores, 2.8 ± 0.7 vs. 3.8 ± 0.7 and action scores 9.7 ± 4.4 vs. 15.1 ± 6.0, p < 0.001). Conclusions: Higher patient activation to manage one's overall healthcare is associated with higher engagement in ACP. Interventions designed to foster general patient activation and self-efficacy to engage in health behaviors and disease management may also improve engagement in the ACP process.

Do non-terminally ill adults want to discuss the end of life with their family physician? An explorative mixed-method study on patients' preferences and family physicians' views in Belgium

BACKGROUND

Research about advance care planning (ACP) has often targeted those with serious illness and limited prognosis, thereby not addressing the preferences of healthy adults or adults with a stable condition.

AIMS

(i) To describe to what extent patients aged 50 and older who are relatively stable or in good health are thinking about the end of life (EOL) and willing to discuss this with their family physician (FP) and (ii) to explore whether patients and FPs indicate the same topics as triggers for ACP discussions in family practice.

METHODS

A cross-sectional study was conducted in a diverse sample of 289 patients aged ≥50 years in family practice in Flanders, Belgium. Subsequently, semi-structured interviews were conducted with patients (n = 5) and FPs (n = 5) to explore their preferences and views on ACP in family practice.

RESULTS

The majority (69.8%) of patients had thought about the EOL and would appreciate it if their FP would initiate a conversation about this (75.9%). The qualitative interviews revealed that when thinking about the EOL, a number of themes captured the thoughts of people according to both patients and FPs: (i) becoming care dependent, (ii) physical and mental deterioration, (iii) dying alone and (iv) having paperwork in order. However, on the basis of patients' ideas and FPs' experiences in practice, a difference was noticed between them when it comes to identifying the themes as triggers for initiating ACP discussions.

CONCLUSION

Although patients are willing to discuss the EOL with their FPs, patients and FPs identified different themes as triggers to initiate discussions about the EOL. The variation in triggers could lead to missed opportunities to engage in ACP in a timely manner.

Measuring Advance Care Planning: Optimizing the Advance Care Planning Engagement Survey

CONTEXT

A validated 82-item Advance Care Planning (ACP) Engagement Survey measures a broad range of behaviors. However, concise surveys are needed.

OBJECTIVES

The objective of this study was to validate shorter versions of the survey.

METHODS

The survey included 57 process (e.g., readiness) and 25 action items (e.g., discussions). For item reduction, we systematically eliminated questions based on face validity, item nonresponse, redundancy, ceiling effects, and factor analysis. We assessed internal consistency (Cronbach's alpha) and construct validity with cross-sectional correlations and the ability of the progressively shorter survey versions to detect change one week after exposure to an ACP intervention (Pearson correlation coefficients).

RESULTS

Five hundred one participants (four Canadian and three US sites) were included in item reduction (mean age 69 years [±10], 41% nonwhite). Because of high correlations between readiness and action items, all action items were removed. Because of high correlations and ceiling effects, two process items were removed. Successive factor analysis then created 55-, 34-, 15-, nine-, and four-item versions; 664 participants (from three US ACP clinical trials) were included in validity analysis (age 65 years [±8], 72% nonwhite, 34% Spanish speaking). Cronbach's alphas were high for all versions (four items 0.84-55 items 0.97). Compared with the original survey, cross-sectional correlations were high (four items 0.85; 55 items 0.97) as were delta correlations (four items 0.68; 55 items 0.93).

CONCLUSION

Shorter versions of the ACP Engagement Survey are valid, internally consistent, and able to detect change across a broad range of ACP behaviors for English and Spanish speakers. Shorter ACP surveys can efficiently measure broad ACP behaviors in research and clinical settings.