www.astralcodexten.com/p/my-left-kidney
2 corrections found
An American study of 347 donors found no increased mortality after an average followup of 6 years.
The cited U.S. study did not include 347 donors; it analyzed 80,347 live kidney donors with a median follow-up of 6.3 years.
Full reasoning
The sentence appears to describe the 2010 JAMA study “Perioperative mortality and long-term survival following live kidney donation” (PMID 20215610). That study’s sample size was 80,347 live kidney donors, not 347.
A Johns Hopkins page reproducing the abstract states: “Live donors were drawn from a mandated national registry of 80 347 live kidney donors in the United States … Median follow-up was 6.3 years.” It also says the mortality rate was “not significantly increased after a median of 6.3 years.” So the qualitative takeaway about mortality is broadly right, but the donor count in the post is off by about two orders of magnitude.
This looks like a numerical transcription error rather than a disagreement about interpretation.
2 sources
- Perioperative mortality and long-term survival following live kidney donation - Johns Hopkins University
Design, Setting, and Participants: Live donors were drawn from a mandated national registry of 80 347 live kidney donors in the United States ... Median (interquartile range) follow-up was 6.3 (3.2-9.8) years.
- Perioperative Mortality and Long-term Survival Following Live Kidney Donation
Results ... However, long-term risk of death was no higher for live donors ... Conclusion: Among a cohort of live kidney donors compared with a healthy matched cohort, the mortality rate was not significantly increased after a median of 6.3 years.
When you donate, you can give the organ bank the names of up to five friends or family members who you’re worried might end up in this situation. In exchange for your donation, they will make sure those people get to the top of the list if they ever need a transplant themselves.
This overstates how kidney-donation vouchers work. The National Kidney Registry’s family-voucher program is limited to up to five family members, gives priority within NKR matching rather than simply moving people to the top of the transplant list, and explicitly says there is no guarantee a voucher holder will be matched or transplanted.
Full reasoning
This description conflates and overstates the National Kidney Registry (NKR) Family Voucher Program.
According to the NKR’s donor FAQ, the Family Voucher Program lets a donor provide vouchers for up to five family members—not generic “friends or family members.” The FAQ says voucher holders may receive “priority consideration for a well-matched kidney from a living donor through the NKR.”
The NKR’s Medical Board Policies are even more explicit that this is not a blanket promise to move someone to the top of the transplant list: the policy states “There is no guarantee that a voucher holder can be matched or transplanted.” The policy also describes voucher holders as being prioritized within NKR’s voucher program and match-offer process, which is different from saying an organ bank will simply ensure they are “at the top of the list.”
So the post overstates three things at once:
- Who can be named: the NKR family voucher is for family members, not arbitrary friends.
- What priority they get: it is priority consideration within NKR living-donor matching, not a universal jump to the top of the transplant waiting list.
- How certain it is: NKR explicitly says there is no guarantee a voucher holder will be matched or transplanted.
This matters because the post presents the voucher as a general, guaranteed protection for any donor, but the official program terms are narrower and more conditional.
3 sources
- Kidney Donation FAQ | National Kidney Registry
If you don't have an intended recipient who is in imminent need of a kidney, you can take advantage of the Family Voucher Program, where you can donate and provide vouchers for up to five family members ... If any of the voucher holders need a kidney in the future, they can activate their voucher to receive priority consideration for a well-matched kidney from a living donor through the NKR.
- Medical Board Policies | National Kidney Registry
There is no guarantee that a voucher holder can be matched or transplanted. ... Family Voucher: May identify up to five family members for vouchers, none of whom are in imminent need of a transplant.
- National Kidney Registry Launches Family Voucher Program, Providing Security for Donor Families
The Family Voucher Program allows living kidney donors to name up to five immediate family members ... Should one of the voucher holders ever need a kidney transplant in the future, they will be prioritized for a living donor kidney through the National Kidney Registry.