Fig. 4: Rate ratios (RRs) for pre-defined post-acute COVID-19 symptoms, comparing 1:3 matched SARS-CoV-2 infections to first SARS-CoV-2 negative tests, stratified for wave of predominant SARS-CoV-2 variant. | Nature Communications

Fig. 4: Rate ratios (RRs) for pre-defined post-acute COVID-19 symptoms, comparing 1:3 matched SARS-CoV-2 infections to first SARS-CoV-2 negative tests, stratified for wave of predominant SARS-CoV-2 variant.

From: The burden of post-acute COVID-19 symptoms in a multinational network cohort analysis

Fig. 4

SIDIAP Sistema d’Informació per al Desenvolupament de la Investigació en Atenció Primària, CPRD Clinical Practice Research Datalink, RR Rate ratio, 95% CI 95% confidence intervals. RR and 95% CI were calculated among 229,086 and 332,276 SARS-CoV-2 infections and matched 591,145 and 912,745 first SARS-CoV-2 negative tests in SIDIAP and CPRD, respectively.

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