A Simple Mathematical Equation Disqualified Black Patients for Kidney Transplants

Dave Gershgorn
Momentum
Published in
2 min readOct 28, 2020

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At Mass General Brigham, a Boston hospital, doctors punching numbers into the computer system to calculate their patient’s kidney health would see this message:

“If patient is Black, multiply by 1.159.”

The number that doctors calculated, a single number that measured how well the kidneys filter waste, is a key factor in the kind of care patients receive. It’s also crucial for whether the patient is prioritized for kidney transplants.

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Dave Gershgorn
Momentum

Senior Writer at OneZero covering surveillance, facial recognition, DIY tech, and artificial intelligence. Previously: Qz, PopSci, and NYTimes.