Abstract

Background

Internationally the demand for organ transplants far exceeds the available supply of donated organs.

Purpose

We examine if a digital reciprocity prime based on reciprocal altruism can be used to increase organ donor registration intentions and behavior.

Methods

Four hundred twenty participants (223 females) from England and Scotland aged 18+ who were not currently registered organ donors were randomized by block allocation using a 1:1 ratio to receive either a reciprocity prime or control message. After manipulation, they were asked to indicate their organ donation intentions and whether or not they would like to be taken to an organ donation registration and information page.

Results

In line with our previous work, participants primed with a reciprocity statement reported greater intent to register as an organ donor than controls (using a 7-point Likert scale where higher scores = greater intention; prime mean [SD] = 4.3 [1.6] vs. control mean [SD] = 3.7 [1.4], p ≤ .001, d = 0.4 [95% confidence interval [CI] = 0.21–0.59]). There was again however, no effect on behavior as rates of participants agreeing to receive the donation register web-link were comparable between those primed at 11% (n = 23/210) (95% CI = 7.4–16.0) and controls at 12% (n = 25/210) (95% CI = 8.1–17.1), X2 (1) = 0.09, p = .759.

Conclusions

Reciprocal altruism appears useful for increasing intention towards joining the organ donation register. It does not, however, appear to increase organ donor behavior.

This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model (https://dbpia.nl.go.kr/journals/pages/open_access/funder_policies/chorus/standard_publication_model)
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