Opt-out systems of organ donation: International evidence review

This paper presents three main strands of evidence:

1. International evidence suggests that an association exists between presumed consent legislation and increased organ donation rates;
2. Recent surveys indicate that there is significant support for the introduction of an opt-out system for organ donation in Wales;
3. Experimental literature provides evidence for a mechanism through which presumed consent might increase organ donation, through the influence of the default position.