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Organ donation consent vs. actual rates

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Organ donation consent vs. actual rates

Emil O. W. Kirkegaard
Jul 5, 2016
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There is a famous paper arguing the case for libertarian paternalism by using organ donation consent rates.

Johnson, E. J., & Goldstein, D. (2003). Do defaults save lives?. Science, 302(5649), 1338-1339.

The main result is this:

organ_consent

So having opt-out drastically increases consent rates compared with opt-in. These countries have various other differences between them, but the effect size is huge.

But what about actual donation rates? As it is, there is a pan-Nordic organization for this, Scandiatransplant. They publish their data. So I downloaded the last 10 years worth of data and calculated the actual donation rates per 100k persons. They look like this:

organ_donation_rates

The line varies a lot for Iceland because the population is fairly small (about 300k). We see that the donation dates for Denmark and Sweden are quite comparable despite the huge difference in organ consent rates. So, apparently the bottom line did not change much despite the difference in consent rates. Since people still die on waiting lists (Danish data), there must be some other limiting factor.

Materials

organ_donation.csv data file

R code:

library(pacman)
p_load(readr, plyr, magrittr, ggplot2)
#data
d_organ = read_csv("organ_donation.csv")
#per capita x 100k
d_organ %<>% mutate(Donations_per_100k = (Donations / Population)*100000)
#plot
ggplot(d_organ, aes(Year, Donations_per_100k, color = Country)) +
  geom_line(size = 1) +
  scale_x_continuous(breaks = 2000:3000)
ggsave("organ_donation_rates.png")
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