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Table 1 Details of final attributes and levels used for Discrete Choice Experiment (DCE) questions

From: Who should be prioritized for renal transplantation?: Analysis of key stakeholder preferences using discrete choice experiments

Attribute Variable name Levels Interpretation of coefficients
Time spent awaiting transplantation Wait 1 month, 2 years, and 10 years. Indirect utility of each 1 year reduction in transplant recipient waiting time.
Tissue type matching. Tiss Non-favourable match: 86% average kidney survival rate post-transplant. Indirect utility of prioritizing people for each 1% improvement in kidney survival.
   Favourable match: 89% average kidney survival rate post-transplant.  
   Perfect match: 90% average kidney survival rate post-transplant.  
How many child or adult dependents recipients have Dep None, 1, or 4 dependents. Indirect utility of each additional dependent.
Recipient age Age 20 years, 45 years, and 65 years Indirect utility for each 1 year reduction in recipient age.
Diseases predominantly affecting life expectancy dis1 No disease affecting life expectancy (other than Kidney disease) vs. moderate disease (uncontrolled hypertension or obesity) & Kidney disease. Indirect utility of having no rather than moderate disease predominantly affecting life expectancy.
  dis2 Moderate disease (uncontrolled hypertension or obesity) affecting life expectancy vs. severe disease (heart attack, stroke, or diabetes with complications). Indirect utility of having moderate disease rather than severe disease predominantly affecting life expectancy.
Diseases predominantly affecting quality of life ill1 No disease affecting quality of life (other than Kidney disease) vs. moderate disease (mild asthma). Indirect utility of having no disease rather than a moderate disease predominantly affecting quality of life.
  ill2 Moderate disease (mild asthma) affecting quality of life vs. severe disease (severe arthritis). Indirect utility of having a moderate disease rather than a severe disease predominantly affecting quality of life.