Does implementing opt-out solve the organ shortage problem? Evidence from a synthetic control approach

Area of Science:

• Public Health Policy
• Transplantation Medicine
• Health Economics

Background:

• Persistent global shortage of organ donations poses a critical public health challenge.
• Many countries are exploring legislative changes to increase organ availability.
• The opt-out system, where consent is presumed unless explicitly refused, is a key policy under consideration.

Purpose of the Study:

• To evaluate the causal effect of adopting an opt-out organ donation system on organ donation rates.
• To provide empirical evidence on the effectiveness of opt-out legislation compared to opt-in systems.

Main Methods:

• Utilized a 21-year panel dataset spanning from 1999 onwards.
• Employed a synthetic control approach to construct counterfactuals for countries transitioning to opt-out.
• Compared organ donation rates in countries that reformed their laws (e.g., Argentina, Wales) against their synthetic counterparts.

Main Results:

• Synthetic control estimates indicate a substantial increase in organ donation rates following the adoption of opt-out systems in Argentina and Wales.
• The observed increases in donation rates were significantly higher than predicted by the synthetic counterfactuals (i.e., without the reform).
• The shift from opt-in to opt-out legislation demonstrated a positive and measurable impact on organ procurement.

Conclusions:

• The adoption of opt-out organ donation systems is an effective strategy for considerably reducing the organ shortage.
• While not a panacea, opt-out policies represent a valuable tool among other interventions to improve organ donation rates.
• The findings support the consideration of opt-out systems as a viable policy to enhance organ availability for transplantation.