Don't Throw Your Heart Away: Patient Study 4

Study Overview
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Brief Summary
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This empirical study tests whether transplant center performance data that reflect center donor acceptance rates influence patients and their family members to evaluate centers with high organ decline rates less favorably than centers with low organ decline rates. 400 transplant patients and family members will be recruited from transplant support group social media websites and randomized to one of four different information presentation conditions. Upon viewing a pair of outcome tables corresponding to their condition, the participants are asked to choose which hospital is higher performing (one hospital with a non-selective accepting strategy and one hospital with a more selective cherrypicking strategy.

Official Title
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Don't Throw Your Heart Away: Patient Study 4

Conditions
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Cardiac Transplant Disorder

Intervention / Treatment
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* Other: Stratified Transplant Survival Metric
* Other: SRTR Information Format


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Participants will be asked to participate if they confirm the following inclusion criteria in the consent form. 18 years of age or older must read and understand the information in the consent form must want to participate in the research and continue with the survey must be a pre- or post-transplant patient or family member of the transplant patient Exclusion Criteria: Participants who do not meet the primary criterion of being a pre- or post-transplant patient or family member of the transplant patient.

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Health Services Research
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| No Intervention: Condition 1: Combined Transplant Pictograph<br>Participants randomized to baseline (control) arm Condition 1 will view only combined transplant survival outcome information (e.g. transplant survival rate not stratified by number and quality of donor hearts accepted at each center) when making a choice between the two hospitals. The survival following transplant metric is displayed as a survival rate pictograph corresponding to all patients at the center who received transplants. | |
| Experimental: Condition 2: Stratified Transplant Pictograph<br>Participants randomized to Condition 2 will view only stratified transplant survival outcome information when making a choice between the two hospitals. The survival following transplant metric is displayed as a pair of survival rate pictographs corresponding to two distinct groups of transplant patients at the center: those who received optimal donor organs and those who received adequate donor organs. | Other: Stratified Transplant Survival Metric<br>* Both transplant metric conditions display the number of hearts offered to each center, the number of hearts accepted by each center, and the number of transplants performed at each center (in a year), in addition to the condition-specific metrics below. The stratified condition instead features a pair of values corresponding to each center's offers/acceptances/transplant survival rates for donor hearts of optimal or adequate quality.<br>|
| Experimental: Condition 3: Combined Transplant SRTR<br>Participants randomized to Condition 3 will view only combined transplant survival outcome information (e.g. transplant survival rate not stratified by number and quality of donor hearts accepted at each center) when making a choice between the two hospitals. The survival following transplant metric is displayed as a quintile score corresponding to all patients at the center who received transplants. | Other: SRTR Information Format<br>* The information format varies based on how the transplant hospital statistics are organized when presented to participants on the choice screen. The SRTR conditions mimic the information format present on the SRTR public reporting website.<br>|
| Experimental: Condition 4: Stratified Transplant SRTR<br>Participants randomized to Condition 4 will view only stratified transplant survival outcome information when making a choice between the two hospitals. The survival following transplant metric is displayed as a pair of quintile scores corresponding to two distinct groups of transplant patients at the center: those who received optimal donor organs and those who received adequate donor organs. | Other: Stratified Transplant Survival Metric<br>* Both transplant metric conditions display the number of hearts offered to each center, the number of hearts accepted by each center, and the number of transplants performed at each center (in a year), in addition to the condition-specific metrics below. The stratified condition instead features a pair of values corresponding to each center's offers/acceptances/transplant survival rates for donor hearts of optimal or adequate quality.<br>Other: SRTR Information Format<br>* The information format varies based on how the transplant hospital statistics are organized when presented to participants on the choice screen. The SRTR conditions mimic the information format present on the SRTR public reporting website.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Hospital Choice | The outcome variable will be a measure of binary choice between two hospitals: one with a selective donor-heart acceptance strategy and one with a non-selective donor heart acceptance strategy. Participants will respond to the question Which Hospital is higher performing? Please click on one of the two tables below to indicate which hospital is the better choice. Participants will choose been two outcome tables featuring the selective and non-selective hospital (counterbalanced, such that each of the two choices is equally likely to be presented at top of the choice scenario in each condition). The number of participants that choose each hospital will be the measured outcome variable used in analyses. | 1 day | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Mediator of Hospital Choice | On the next page of the survey, participants will respond to three mediator questions: There are many reasons why one transplant hospital might outperform another. Which reasons were most important in your decision? Please move the slider to indicate how much you considered each of the reasons below (0=reason was not important, 100=reason was extremely important). Participants will then move a slider bar (0-100) to indicate the importance of the following three items: Patients were more likely to receive an excellent donor heart at the hospital I picked. Patients were less likely to receive a marginal donor heart at the hospital I picked. Patients were more likely to receive any kind of heart at the hospital I picked. The third item (more likely to receive any kind of heart) will be the only variable that is included in the planned mediation analysis. | 1 day | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Heart Transplant, Transplant Survival, Applied Ethics, Medical Student, Human Behavior, Decision Psychology