It's probably not great as a mass screening technique, at least as described - it has a roughly 90% positive predictive value in a population already screened b

It's probably not great as a mass screening technique, at least as described - it has a roughly 90% positive predictive value in a population already screened by experiencing cognitive decline. (In other words, when the population prevalence is expected to be higher). But it sounds way better than having a cerebrospinal fluid sample taken! The actual article, for those interested, is here: https://jamanetwork.com/journals/jama/fullarticle/2821669?guestAccessKey=afaed68f-23d4-42cd-9123-49b9201851c6&utm_source=For_The_Media&utm_medium=referral&utm_campaign=ftm_links&utm_content=tfl&utm_term=072824 https://jamanetwork.com/journals/jama/fullarticle/2821669?gu...