NOVA - "Racially-biased medical algorithm prioritizes white patients over Black patients"https://www.pbs.org/wgbh/nova/article/racial-bias-medical-algorithm-black-patients/

What caused the racial bias in the algorithm described in the article, "Racially-biased medical algorithm prioritizes white patients over black patients"?

• Black people have worse health conditions than people of other races, and the algorithm didn't take health care spending into account.
• Black people have lower health care spending than White people, holding medical conditions constant, in part because they have less access to care.
• The algorithm relied on financial rather than biological data. Including biological data reduced the number of chronic conditions missed in Black people by 84%.
• Black people have historic mistrust in health providers, which may explain why they have lower health care spending holding health conditions constant.