「コロナ後遺症」（笑）とコロナ感染に因果関係なしとの統計結果

 March 30, 2023

Prevalence and Characteristics Associated With Post–COVID-19 Condition Among Nonhospitalized Adolescents and Young Adults

Joel Selvakumar, MD^1,2; Lise Beier Havdal, MD¹; Martin Drevvatne, MD^1,2; et al Elias Myrstad Brodwall, MD¹; Lise Lund Berven, PhD¹; Tonje Stiansen-Sonerud, MSc^1,3; Gunnar Einvik, MD, PhD^2,4; Truls Michael Leegaard, MD, PhD^2,5; Trygve Tjade, MD⁶; Annika E. Michelsen, PhD^2,7; Tom Eirik Mollnes, MD, PhD^8,9,10; Fridtjof Lund-Johansen, MD, PhD⁸; Trygve Holmøy, MD, PhD^2,11; Henrik Zetterberg, MD, PhD^{12,13,14,15,16}; Kaj Blennow, MD, PhD^12,13; Carolina X. Sandler, PhD^17,18; Erin Cvejic, PhD¹⁹; Andrew R. Lloyd, MD, PhD¹⁸; Vegard Bruun Bratholm Wyller, MD, PhD^1,2

Author Affiliations Article Information

JAMA Netw Open. 2023;6(3):e235763. doi:10.1001/jamanetworkopen.2023.5763

The main results from the present study were: (1) the prevalence of PCC six months after acute COVID-19 was approximately 50%, but was equally high in a control group of comparable SARS-CoV-2-negative individuals; (2) acute COVID-19 was not an independent risk factor for PCC; (3) the severity of clinical symptoms at baseline, irrespective of SARS-CoV-2 status, was the main risk factor of persistent symptoms six months later.

Symptom prevalence data are consistent with other controlled studies of young people after acute COVID-19 reporting a high symptom load, with only subtle differences between individuals testing positive and negative for SARS-CoV-2. Correspondingly, a large population-based study found no associations between most persistent symptoms attributed to COVID-19 and serological evidence of SARS-CoV-2 infection. …

These findings suggest that persistent symptoms in this age group are related to factors other than SARS-CoV-2 infection, and therefore question the usefulness of the WHO case definition of PCC.

https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2802893

ワクチン接種の有無との因果関係は？（爆ｗｗｗｗｗｗｗｗｗｗｗｗｗ