cross-posted from: https://lemmy.zip/post/1892119
Archived version: https://archive.ph/qgUwg
Archived version: https://web.archive.org/web/20230825150703/https://www.euronews.com/next/2023/08/23/risk-of-long-covid-persists-two-years-post-infection-study-shows
Why would the sample size negate it?
If you assume that people with stronger immune system and less preconditions are less likely to catch COVID, or notice having caught it, surely the sample size does nothing to prevent this bias?
That is outside of the paper scope. They researched people that did tested positive and compared long term effects between mild cases, those with hospitalizations and those that weren't infected.