https://www.wsj.com/articles/the-cdcs-long-covid-deception-depression-anxiety-vaccine-mandate-university-gwu-testing-mental-health-48bdd11b?mod=opinion_lead_pos7
Many liberals label themselves “pro-science” as if that’s a political position. Then again, so many putatively scientific studies seem intended to promote progressive policies rather than advance scientific knowledge. Such studies then get amplified by the media and self-appointed experts on social media.
Consider a recent study from the Centers for Disease Control and Prevention that claims to find that nearly 36% of Covid cases among students, faculty and staff at George Washington University resulted in “long Covid.” The study suggests that young, healthy people face a high risk of chronic debilitating symptoms after infection despite being at low risk of getting severely ill with the virus.
The study also finds that the unvaccinated were at more than twice as high a risk of developing long Covid as those fully vaccinated who had gotten boosters. This sounds plausible. But drill down, and it becomes clear that the evidence is too thin to draw any conclusions.
Like many colleges, George Washington University held classes online during the first year of the pandemic even as some students returned to campus. Those on campus were required to undergo weekly Covid testing. During the 2021-22 school year, classrooms reopened but students were required to be vaccinated and later boosted.
The college recorded 4,800 Covid cases between August 2020‒and February 2022. Those who tested positive were later asked to complete 15- to 20-minute surveys about their health and behavioral changes. Only one-third completed the surveys, and those who did might have been more likely to report lingering health problems—a phenomenon known as nonresponse bias.
The study suffers from two other major methodological problems. First, it doesn’t include a control group of students and faculty that weren’t infected. The finding that nearly 36% reported long Covid symptoms is meaningless without such a sample to determine how common such symptoms were among people who never had Covid.