A universal decision support system. Addressing the decision-making needs of patients, families, and clinicians in the setting of critical illness

Use of digital patient decision-support tools for atrial fibrillation treatments: a systematic review and meta-analysis

OBJECTIVES

To assess the effects of digital patient decision-support tools for atrial fibrillation (AF) treatment decisions in adults with AF.

STUDY DESIGN

Systematic review and meta-analysis.

ELIGIBILITY CRITERIA

Eligible randomised controlled trials (RCTs) evaluated digital patient decision-support tools for AF treatment decisions in adults with AF.

INFORMATION SOURCES

We searched MEDLINE, EMBASE and Scopus from 2005 to 2023.Risk-of-bias (RoB) assessment: We assessed RoB using the Cochrane Risk of Bias Tool 2 for RCTs and cluster RCT and the ROBINS-I tool for quasi-experimental studies.

SYNTHESIS OF RESULTS

We used random effects meta-analysis to synthesise decisional conflict and patient knowledge outcomes reported in RCTs. We performed narrative synthesis for all outcomes. The main outcomes of interest were decisional conflict and patient knowledge.

RESULTS

13 articles, reporting on 11 studies (4 RCTs, 1 cluster RCT and 6 quasi-experimental) met the inclusion criteria. There were 2714 participants across all studies (2372 in RCTs), of which 26% were women and the mean age was 71 years. Socioeconomically disadvantaged groups were poorly represented in the included studies. Seven studies (n=2508) focused on non-valvular AF and the mean CHAD2DS2-VASc across studies was 3.2 and for HAS-BLED 1.9. All tools focused on decisions regarding thromboembolic stroke prevention and most enabled calculation of individualised stroke risk. Tools were heterogeneous in features and functions; four tools were patient decision aids. The readability of content was reported in one study. Meta-analyses showed a reduction in decisional conflict (4 RCTs (n=2167); standardised mean difference -0.19; 95% CI -0.30 to -0.08; p=0.001; I2=26.5%; moderate certainty evidence) corresponding to a decrease in 12.4 units on a scale of 0 to 100 (95% CI -19.5 to -5.2) and improvement in patient knowledge (2 RCTs (n=1057); risk difference 0.72, 95% CI 0.68, 0.76, p<0.001; I2=0%; low certainty evidence) favouring digital patient decision-support tools compared with usual care. Four of the 11 tools were publicly available and 3 had been implemented in healthcare delivery.

CONCLUSIONS

In the context of stroke prevention in AF, digital patient decision-support tools likely reduce decisional conflict and may result in little to no change in patient knowledge, compared with usual care. Future studies should leverage digital capabilities for increased personalisation and interactivity of the tools, with better consideration of health literacy and equity aspects. Additional robust trials and implementation studies are warranted.

PROSPERO REGISTRATION NUMBER

CRD42020218025.

Awareness of Hospice Care Among Community-Dwelling Elderly Participants

Background and Purpose: The main goal of hospice care is to improve the quality of life for people who are at the end-of-life phase. However, investigations on the awareness of hospice care among community-dwelling elderly participants are limited. This work aimed to reveal the awareness status of hospice care and explore the factors influencing the awareness rate among elderly participants. Methods: A questionnaire survey was conducted among individuals aged 60 years and above. Results: A total of 4,969 individuals aged 60 years and above were randomly selected from 48 primary medical institutions in Handan. The awareness rate of hospice care in the baseline survey was 19.3% (n = 959). All included individuals were divided into two groups in accordance with their awareness of hospice care. The awareness of hospice care among participants with low educational level, living alone, and afraid of talking about death was low (p < .05). Implications for Practice: The level of awareness of hospice care among community-dwelling elderly participants is low. The influencing factors included educational level, living status, and fear of talking about death. The community-dwelling elderly participants' awareness of hospice care must be improved. It is recommended that public medical education and training should be enhanced to improve knowledge and awareness of hospice care among community-dwelling elderly residents with low educational level, living alone, and afraid of talking about death.

Feasibility and acceptability of a web-based advance care plan for dementia

While advance care planning (ACP) can help elicit preferences and is associated with improved end-of-life outcomes, persons living with dementia (PLWD) in nursing homes are rarely included in ACP. Web-based decision aids are a readily available tool to engage PLWD in ACP, but none are designed for the unique needs of PLWD, particularly those residing in nursing homes. Our Memory Care Wishes (OMCW) was adapted from a publicly available web-based ACP tool in collaboration with dementia care experts. This study aimed to explore the acceptability of OMCW. We used a convergent, mixed methods design to describe PLWD and surrogates' experiences using the OMCW website. Participants described ease of use, comfort with viewing, helpfulness for planning, and likelihood to recommend. Overall, OMCW is acceptable, however, PLWD continue to have difficulties understanding and engaging with some website content. Modifications were incorporated based on these findings, setting the stage for implementation and effectiveness testing.

The Role of Recipient Characteristics in Health Video Communication Outcomes: Scoping Review

BACKGROUND

The importance of effective communication during public health emergencies has been highlighted by the World Health Organization, and it has published guidelines for effective communication in such situations. With video being a popular medium, video communication has been a growing area of study over the past decades and is increasingly used across different sectors and disciplines, including health. Health-related video communication gained momentum during the SARS-CoV-2 pandemic, and video was among the most frequently used modes of communication worldwide. However, although much research has been done regarding different characteristics of video content (the message) and its delivery (the messenger), there is a lack of knowledge about the role played by the characteristics of the recipients for the creation of effective communication.

OBJECTIVE

The aim of this review is to identify how health video communication outcomes are shaped by recipient characteristics, as such characteristics might affect the effectiveness of communication. The main research question of the study is as follows: do the characteristics of the recipients of health videos affect the outcomes of the communication?

METHODS

A scoping review describing the existing knowledge within the field was conducted. We searched for literature in 3 databases (PubMed, Scopus, and Embase) and defined eligibility criteria based on the relevance to the research question. Recipient characteristics and health video communication outcomes were identified and classified.

RESULTS

Of the 1040 documents initially identified, 128 (12.31%) met the criteria for full-text assessment, and 39 (3.75%) met the inclusion criteria. The included studies reported 56 recipient characteristics and 42 communication outcomes. The reported associations between characteristics and outcomes were identified, and the potential research opportunities were discussed. Contributions were made to theory development by amending the existing framework of the Integrated-Change model, which is an integrated model of motivational and behavioral change.

CONCLUSIONS

Although several recipient characteristics and health video communication outcomes were identified, there is a lack of robust empirical evidence on the association between them. Further research is needed to understand how the preceding characteristics of the recipients might affect the various outcomes of health video communication.

Evaluating the Balance Between Privacy and Access in Digital Information Sharing

Supplemental Digital Content is available in the text.

Access to personal health records in an ICU by persons involved in the patient’s care (referred to broadly as “family members” below) has the potential to increase engagement and reduce the negative psychologic sequelae of such hospitalizations. Currently, little is known about patient preferences for information sharing with a designated family member in the ICU. We sought to understand the information-sharing preferences of former ICU patients and their family members and to identify predictors of information-sharing preferences.

Development and validation of a novel informational booklet for pediatric long-term ventilation decision support

OBJECTIVES

To provide accessible, uniform, comprehensive, and balanced information to families deciding whether to initiate long-term ventilation (LTV) for their child, we sought to develop and validate a novel informational resource.

METHODS

The Ottawa Decision Support Framework was followed. Previous interviews with 44 lay and 15 professional stakeholders and published literature provided content for a booklet. Iterative versions were cognitive tested with six parents facing decisions and five pediatric intensivists. Ten parents facing decisions evaluated the booklet using the Preparation for Decision Making Scale and reported their decisional conflict, which was juxtaposed to the conflict of 21 parents who did not read it, using the Decisional Conflict Scale. Twelve home ventilation program directors evaluated the booklet's clinical sensibility and sensitivity, using a self-designed six-item questionnaire. Data presented using summary statistics.

RESULTS

The illustrated booklet (6th-grade reading level) has nine topical sections on chronic respiratory failure and invasive and noninvasive LTV, including the option to forgo LTV. Ten parents who read the booklet rated it as helping "Quite a bit" or more on all items of the Preparation for Decision Making Scale and had seemingly less decisional conflict than 21 parents who did not. Twelve directors rated it highly for clinical sensibility and sensitivity.

CONCLUSIONS

The LTV booklet was rigorously developed and favorably evaluated. It offers a resource to improve patient/family knowledge, supplement shared decision-making, and reduce decisional conflict around LTV decisions. Future studies should validate it in other settings and further study its effectiveness.

Modelling clinical experience data as an evidence for patient-oriented decision support

Background

Evidence-based Clinical Decision Support Systems (CDSSs) usually obtain clinical evidences from randomized controlled trials based on coarse-grained groups. Individuals who are beyond the scope of the original trials cannot be accurately and objectively supported. Also, patients’ opinions and preferences towards the health care delivered to them have rarely been considered. In this regards, we propose to use clinical experience data as an evidence to support patient-oriented decision-making.

Methods

The experience data of similar patients from social networks as subjective evidence and the argumentation rules derived from clinical guidelines as objective evidence are combined to support decision making together. They are integrated into a comprehensive decision support architecture. The patient reviews are crawled from social networks and sentimentally analyzed to become structured data which are mapped to the Clinical Sentiment Ontology (CSO). This is used to build a Patient Experience Knowledge Base (PEKB) that can complement the original clinical guidelines. An Experience Inference Engine (EIE) is developed to match similar experience cases from both patient preference features and patient conditions and ultimately, comprehensive clinical recommendations are generated.

Results

A prototype system is designed and implemented to show the feasibility of the decision support architecture. The system allows patients and domain experts to easily explore various choices and trade-offs via modifying attribute values to select the most appropriate decisions.

Conclusions

The integrated decision support architecture built is generic to solving a wide range of clinical problems. This will lead to better-informed clinical decisions and ultimately improved patient care.

Developing the family support tool: An interactive, web-based tool to help families navigate the complexities of surrogate decision making in ICUs

INTRODUCTION

Although family members of incapacitated, critically ill patients often struggle in the role of surrogate decision maker, there are no low-cost, easily-scaled interventions to address this problem.

AIM OF THE STUDY

To develop and pilot-test the Family Support Tool, an interactive, web-based tool to help individuals navigate the complexities of surrogate decision making in ICUs.

MATERIAL AND METHODS

We used a mixed methods, user-centered process to create the Family Support Tool, including: 1) creation of a preliminary design by an expert panel; 2) engagement of a key stakeholder panel to iteratively refine the preliminary design; 3) user testing of a low-fidelity prototype of the tool by 6 former ICU surrogates; 4) creation of a web-based prototype; and 5) user testing of the web-based prototype with 14 surrogates and ICU physicians, including semi-structured interviews and quantitative measurement of usability, acceptability, and perceived effectiveness.

RESULTS

The initial design contained a collection of videos and exercises designed to help individuals understand the surrogate's role and think through the patient's values and preferences. Based on family stakeholders' feedback about the emotional overwhelm they experience early in an ICU stay, we redesigned the tool to be viewed in sections, with the first section focused on decreasing surrogates' emotional distress, and later sections focused on helping surrogates prepare for family meetings. Surrogates actively making decisions in the ICU judged the final tool to be highly usable (mean summary score 83.5, correlating to 95th percentile when normalized to devices of its type), acceptable (mean 4.2 +/- 0.5 out of 5), and effective (mean 4.3 +/- 0.6 out of 5). All surrogates reported the tool helped them consider goals of care and all indicated they would recommend the tool to a friend.

CONCLUSIONS

We successfully developed a web-based tool to help individuals navigate the complexities of surrogate decision making in ICUs that has high potential for scalability. Surrogates judged the tool to be usable, acceptable, and effective. These data support proceeding to test the tool in a pilot randomized clinical trial.

Patients Decision Aid System Based on FHIR Profiles

Patients are becoming more and more involved in clinical decision-making process. Several factors support this process. Advances in omics allows individualization of diagnosis and treatment. Patient awareness and easy availability of data on the Internet allows patients to become informed decision makers when it comes even to disease management. Mass media emphasize the issue of medical errors, making patients demanding for quality in medical care. In some healthcare settings, patents face a problem of interpreting medical data and making decisions on treatment tactics without having a doctor, who could potentially support them. Delegating this task to a Patient Decision Aide system can add automatically generated recommendations to result reports without adding significant workload on the doctors, increase patients' motivation and support their decisions. We have implemented a patient decision aid system based on the productions rules, which: Collects data from available sources; Automatically analyses and interprets laboratory test results; Recommends running additional tests for a more precise diagnostic; Delivers automatically generated reports to doctors and patients in a natural language. To achieve semantic interoperability with other systems we have implemented a FHIR engine. The knowledge base has been organized as a graph structure. The application is structured as a set of lightly coupled services, which implement the logic of the decision support system. In total, we have modelled 365 nodes of test components, 5084 nodes of inference rules, 49932 connections and 3072 blocks of text for medical certificates. The findings of the research provide a deep understanding of how the semantically interoperable clinical decision support systems are implemented. Advances in notification the patients with the elements of patient decision aid is important for clinical data management, and for patients' empowerment and protection. We suppose that the system empowering patients in such way can play a meaningful role in helping patients to make informed decisions during the process of diagnostics and treatment.

Surrogate Decision Makers' Perspectives on Family Members' Prognosis after Intracerebral Hemorrhage

BACKGROUND

Surrogate communication with providers about prognosis in the setting of acute critical illness can impact both patient treatment decisions and surrogate outcomes.

OBJECTIVES

To examine surrogate decision maker perspectives on provider prognostic communication after intracerebral hemorrhage (ICH).

DESIGN

Semistructured interviews were conducted and analyzed qualitatively for key themes.

SETTING/SUBJECTS

Surrogate decision makers for individuals admitted with ICH were enrolled from five acute care hospitals.

RESULTS

Fifty-two surrogates participated (mean age = 54, 60% women, 58% non-Hispanic white, 13% African American, 21% Hispanic). Patient status at interview was hospitalized (17%), in rehabilitation/nursing facility (37%), deceased (38%), hospice (4%), or home (6%). Nineteen percent of surrogates reported receiving discordant prognoses, leading to distress or frustration in eight cases (15%) and a change in decision for potentially life-saving brain surgery in three cases (6%). Surrogates were surprised or confused by providers' use of varied terminology for the diagnosis (17%) (e.g., "stroke" vs. "brain hemorrhage" or "brain bleed") and some interpreted "stroke" as having a more negative connotation. Surrogates reported that physicians expressed uncertainty in prognosis in 37%; with physician certainty in 56%. Surrogate reactions to uncertainty were mixed, with some surrogates expressing a negative emotional response (e.g., anxiety) and others reporting understanding or acceptance of uncertainty.

CONCLUSIONS

Current practice of prognostic communication in acute critical illness has many gaps, leading to distress for surrogates and variability in critical treatment decisions. Further work is needed to limit surrogate distress and improve the quality of treatment decisions.

Should We Use the IMPACT-Model for the Outcome Prognostication of TBI Patients? A Qualitative Study Assessing Physicians' Perceptions

Introduction. Shared Decision-Making may facilitate information exchange, deliberation, and effective decision-making, but no decision aids currently exist for difficult decisions in neurocritical care patients. The International Patient Decision Aid Standards, a framework for the creation of high-quality decision aids (DA), recommends the presentation of numeric outcome and risk estimates. Efforts are underway to create a goals-of-care DA in critically-ill traumatic brain injury (ciTBI) patients. To inform its content, we examined physicians’ perceptions, and use of the IMPACT-model, the most widely validated ciTBI outcome model, and explored physicians’ preferences for communicating prognostic information towards families. Methods. We conducted a qualitative study using semi-structured interviews in 20 attending physicians (neurosurgery,neurocritical care,trauma,palliative care) at 7 U.S. academic medical centers. We used performed qualitative content analysis of transcribed interviews to identify major themes. Results. Only 12 physicians (60%) expressed awareness of the IMPACT-model; two stated that they “barely” knew the model. Seven physicians indicated using the model at least some of the time in clinical practice, although none used it exclusively to derive a patient’s prognosis. Four major themes emerged: the IMPACT-model is intended for research but should not be applied to individual patients; mistrust in the IMPACT-model derivation data; the IMPACT-model is helpful in reducing prognostic variability among physicians; concern that statistical models may mislead families about a patient’s prognosis. Discussion: Our study identified significant variability of the awareness, perception, and use of the IMPACT-model among physicians. While many physicians prefer to avoid conveying numeric prognostic estimates with families using the IMPACT-model, several physicians thought that they “ground” them and reduce prognostic variability among physicians. These findings may factor into the creation and implementation of future ciTBI-related DAs.

Recognizing difficult trade-offs: values and treatment preferences for end-of-life care in a multi-site survey of adult patients in family practices

BACKGROUND

Decisions about care options and the use of life-sustaining treatments should be informed by a person's values and treatment preferences. The objective of this study was to examine the consistency of ratings of the importance of the values statements and the association between values statement ratings and the patient's expressed treatment preference.

METHODS

We conducted a multi-site survey in 20 family practices. Patients aged 50 and older self-completed a questionnaire assessing the importance of eight values (rated 1 to 10), and indicated their preference for use of life-sustaining treatment (5 options). We compared correlations among values to a priori hypotheses based on whether the value related to prolonging or shortening life, and examined expected relationships between importance of values and the preference option for life-sustaining treatment.

RESULTS

Eight hundred ten patients participated (92% response rate). Of 24 a priori predicted correlations among values statements, 14 were statistically significant but nearly all were negligible in their magnitude and some were in the opposite direction than expected. For example, the correlation between importance of being comfortable and suffering as little as possible and the importance of living as long as possible should have been inversely correlated but was positively correlated (r = 0.08, p = 0.03). Correlations between importance of values items and preference were negligible, ranging from 0.03 to 0.13.

CONCLUSIONS

Patients may not recognize that trade-offs in what is most important may be needed when considering the use of treatments. In the context of preparation for decision-making during serious illness, decision aids that highlight these trade-offs and connect values to preferences more directly may be more helpful than those that do not.

Family members' satisfaction with care and decision-making in intensive care units and post-stay follow-up needs-a cross-sectional survey study

Aim

The aim of this study was to explore family members' satisfaction with care and decision‐making during the intensive care units stay and their follow‐up needs after the patient's discharge or death.

Design

A cross‐sectional survey study was conducted.

Methods

Family members of patients recently treated in an ICU were participating. The questionnaire contented of background variables, the instrument Family Satisfaction in ICU (FS‐ICU 24) and questions about follow‐up needs. Descriptive and non‐parametric statistics and a multiple linear regression were used in the analysis.

Results

A total of 123 (47%) relatives returned the questionnaire. Satisfaction with care was higher scored than satisfaction with decision‐making. Follow‐ up needs after the ICU stay was reported by 19 (17%) of the participants. Gender and length of the ICU stay were shown as factors identified to predict follow‐up needs.

Personalization and Patient Involvement in Decision Support Systems: Current Trends

OBJECTIVES

This survey aims at highlighting the latest trends (2012-2014) on the development, use, and evaluation of Information and Communication Technologies (ICT) based decision support systems (DSSs) in medicine, with a particular focus on patient-centered and personalized care.

METHODS

We considered papers published on scientific journals, by querying PubMed and Web of ScienceTM. Included studies focused on the implementation or evaluation of ICT-based tools used in clinical practice. A separate search was performed on computerized physician order entry systems (CPOEs), since they are increasingly embedding patient-tailored decision support.

RESULTS

We found 73 papers on DSSs (53 on specific ICT tools) and 72 papers on CPOEs. Although decision support through the delivery of recommendations is frequent (28/53 papers), our review highlighted also DSSs only based on efficient information presentation (25/53). Patient participation in making decisions is still limited (9/53), and mostly focused on risk communication. The most represented medical area is cancer (12%). Policy makers are beginning to be included among stakeholders (6/73), but integration with hospital information systems is still low. Concerning knowledge representation/management issues, we identified a trend towards building inference engines on top of standard data models. Most of the tools (57%) underwent a formal assessment study, even if half of them aimed at evaluating usability and not effectiveness.

CONCLUSIONS

Overall, we have noticed interesting evolutions of medical DSSs to improve communication with the patient, consider the economic and organizational impact, and use standard models for knowledge representation. However, systems focusing on patient-centered care still do not seem to be available at large.

Balancing digital information-sharing and patient privacy when engaging families in the intensive care unit

Patients in intensive care units (ICUs) may lack decisional capacity and may depend on proxy decision makers (PDMs) to make medical decisions on their behalf. High-quality information-sharing with PDMs, including through such means as health information technology, could improve communication and decision making and could potentially minimize the psychological consequences of an ICU stay for both patients and their family members. However, alongside these anticipated benefits of information-sharing are risks of unwanted disclosure of sensitive information. Approaches to identifying the optimal balance between access to digital health information to facilitate engagement and protecting patient privacy are urgently needed. We identified eight themes that should be considered in balancing health information access and patient privacy: 1) potential benefits to patients from PDM data access; 2) potential harms to patients from such access; 3) the moral status of families within the patient-clinician relationship; 4) the scope of relevant information provided to PDMs; 5) issues around defining PDMs' authority; 6) methods for eliciting and documenting patient preferences about their family's information access; 7) the relevance of methods for ascertaining the identity of PDMs; and 8) the obligations of hospitals to prevent privacy breaches by PDMs. We conclude that PDMs should typically have access to health information from the current episode of care when the patient is decisionally impaired, unless the patient has previously expressed a clear preference that PDMs not have such access.

Key stakeholders' perceptions of the acceptability and usefulness of a tablet-based tool to improve communication and shared decision making in ICUs

PURPOSE

Although barriers to shared decision making in intensive care units are well documented, there are currently no easily scaled interventions to overcome these problems. We sought to assess stakeholders' perceptions of the acceptability, usefulness, and design suggestions for a tablet-based tool to support communication and shared decision making in ICUs.

METHODS

We conducted in-depth semi-structured interviews with 58 key stakeholders (30 surrogates and 28 ICU care providers). Interviews explored stakeholders' perceptions about the acceptability of a tablet-based tool to support communication and shared decision making, including the usefulness of modules focused on orienting families to the ICU, educating them about the surrogate's role, completing a question prompt list, eliciting patient values, educating about treatment options, eliciting perceptions about prognosis, and providing psychosocial support resources. The interviewer also elicited stakeholders' design suggestions for such a tool. We used constant comparative methods to identify key themes that arose during the interviews.

RESULTS

Overall, 95% (55/58) of participants perceived the proposed tool to be acceptable, with 98% (57/58) of interviewees finding six or more of the seven content domains acceptable. Stakeholders identified several potential benefits of the tool including that it would help families prepare for the surrogate role and for family meetings as well as give surrogates time and a framework to think about the patient's values and treatment options. Key design suggestions included: conceptualize the tool as a supplement to rather than a substitute for surrogate-clinician communication; make the tool flexible with respect to how, where, and when surrogates can access the tool; incorporate interactive exercises; use video and narration to minimize the cognitive load of the intervention; and build an extremely simple user interface to maximize usefulness for individuals with low computer literacy.

CONCLUSION

There is broad support among stakeholders for the use of a tablet-based tool to improve communication and shared decision making in ICUs. Eliciting the perspectives of key stakeholders early in the design process yielded important insights to create a tool tailored to the needs of surrogates and care providers in ICUs.

Development and usability testing of a Web-based decision aid for families of patients receiving prolonged mechanical ventilation

Background

Web-based decision aids are increasingly important in medical research and clinical care. However, few have been studied in an intensive care unit setting. The objectives of this study were to develop a Web-based decision aid for family members of patients receiving prolonged mechanical ventilation and to evaluate its usability and acceptability.

Methods

Using an iterative process involving 48 critical illness survivors, family surrogate decision makers, and intensivists, we developed a Web-based decision aid addressing goals of care preferences for surrogate decision makers of patients with prolonged mechanical ventilation that could be either administered by study staff or completed independently by family members (Development Phase). After piloting the decision aid among 13 surrogate decision makers and seven intensivists, we assessed the decision aid’s usability in the Evaluation Phase among a cohort of 30 surrogate decision makers using the Systems Usability Scale (SUS). Acceptability was assessed using measures of satisfaction and preference for electronic Collaborative Decision Support (eCODES) versus the original printed decision aid.

Results

The final decision aid, termed ‘electronic Collaborative Decision Support’, provides a framework for shared decision making, elicits relevant values and preferences, incorporates clinical data to personalize prognostic estimates generated from the ProVent prediction model, generates a printable document summarizing the user’s interaction with the decision aid, and can digitally archive each user session. Usability was excellent (mean SUS, 80 ± 10) overall, but lower among those 56 years and older (73 ± 7) versus those who were younger (84 ± 9); p = 0.03. A total of 93% of users reported a preference for electronic versus printed versions.

Conclusions

The Web-based decision aid for ICU surrogate decision makers can facilitate highly individualized information sharing with excellent usability and acceptability. Decision aids that employ an electronic format such as eCODES represent a strategy that could enhance patient-clinician collaboration and decision making quality in intensive care.

Electronic supplementary material

The online version of this article (doi:10.1186/s13613-015-0045-0) contains supplementary material, which is available to authorized users.

The effect of prognostic data presentation format on perceived risk among surrogate decision makers of critically ill patients: a randomized comparative trial

PURPOSE

The purpose of this study is to determine whether varying the format used to present prognostic data alters the perception of risk among surrogate decision makers in the intensive care unit (ICU).

METHODS

This was a prospective randomized comparative trial conducted in a 23-bed adult tertiary ICU. Enrolled surrogate decision makers were randomized to 1 of 2 questionnaires, which presented hypothetical ICU scenarios, identical other than the format in which prognostic data were presented (eg, frequencies vs percentages). Participants were asked to rate the risk associated with each prognostic statement.

RESULTS

We enrolled 141 surrogate decision makers. The perception of risk varied significantly dependent on the presentation format. For "quantitative data," risks were consistently perceived as higher, when presented as frequencies (eg, 1 in 50) compared with equivalent percentages (eg, 2%). Framing "qualitative data" in terms of chance of "death" rather than "survival" led to a statistically significant increase in perceived risks. Framing "quantitative" data in this way did not significantly affect risk perception.

CONCLUSION

Data format had a significant effect on how surrogate decision makers interpreted risk. Qualitative statements are interpreted widely and affected by framing. Where possible, multiple quantitative formats should be used for presenting prognostic information.