3 ms·
Does this study take in account, that people who are hospitalized are probably less healthy than a control group, and maybe already have more cognitive deficits
by andix 6y ago
Does this study take in account, that people who are hospitalized are probably less healthy than a control group, and maybe already have more cognitive deficits then a control group before getting hospitalized?
- regularfry 6y agoThe PDF is available as a preview.
- thespoonbends 6y agoIt does not. It mentions "One might posit that people with lower cognitive ability have higher risk of catching the virus. We consider such a relationship plausible; however, it would not explain why the observed deficits varied in scale with respiratory symptom severity.". That is, it attributes that potential causal link as raising incidence of infection (e.g. they may choose to gather in crowds indoors), not as raising the impact of infection. Either way, as a cross-sectional study, it doesn't establish causation, but may be a smoking gun.