This article doesn't seem particularly balanced. Unless I'm missing something, the author doesn't really give any generalized details about the amount of bias (

This article doesn't seem particularly balanced. Unless I'm missing something, the author doesn't really give any generalized details about the amount of bias (for example, mean bias). The author cites one study where doctors noticed "a bias of up to 8 percent", which sounds high, but if you click through to the link provided, it says: >The mean bias (Spo2 − Sao2) for the 70%–80% saturation range was 2.61% for the Masimo Radical with clip-on sensor, −1.58% for the Radical with disposable sensor, 2.59% for the Nellcor clip, 3.6% for the Nellcor disposable, −0.60% for the Nonin clip, and 2.43% for the Nonin disposable. Basically, the amount of bias varies by manufacturer and type of device, and it is not always a positive bias as implied by the text of the link. This seems to be more of a case of measurement error bounds inherent to any measurement device, rather than "a popular medical device encod[ing] racial bias" and all the other rhetoric in the article.