Cost-effectiveness of transplanting older candidates with acceptable quality deceased donor kidneys
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Importance
Many acceptable quality deceased donor kidneys go unused every year. Older transplant candidates are more vulnerable to rapid health decline.
Objective
To assess the cost-effectiveness of increasing the rate of kidney transplantation in older patients with end-stage kidney disease by using acceptable quality deceased donor kidneys.
Design
This cost-effectiveness analysis utilizes a microsimulation model of the kidney transplantation process for older adult candidates over a lifetime horizon.
Setting
Health state transition probabilities are derived from Scientific Registry of Transplant Recipient data. Costs and quality-of-life weights are derived from published literature and United States Renal Data System annual reports, all of which are varied in a probabilistic sensitivity analysis.
Participants
A synthetic population of deceased donor kidney transplant candidates 65 or older.
Interventions
Increasing the rate of transplantation in 5% increments higher than the status quo rate from 5% to 25% using acceptable quality deceased donor kidneys.
Main Outcomes and Measures
The primary outcomes are the number of key waitlist and post-transplant outcomes, costs, quality-adjusted life-years (QALYs), incremental cost-effectiveness ratios (ICERs).
Results
We estimated there would be 141 fewer waitlist deaths per 10,000 candidates if the rate of deceased donor transplantation were increased by 25% from the status quo rate. Increasing the rate of deceased donor transplantation by 25% costs $8,100 per QALY gained or is cost-saving from the healthcare sector and modified healthcare sector perspectives, respectively. From the healthcare sector perspective, a 25% increase in the rate of deceased donor transplantation is the preferred strategy in all probabilistic sensitivity analysis samples for willingness-to-pay thresholds ≥$40,000 per QALY gained.
Conclusions and Relevance
Increasing the rate of kidney transplantation in older adults, even using acceptable quality deceased donor kidneys, would be cost-effective or cost-saving.
