Fig. 9From: Increased interleukin-6 is associated with long COVID-19: a systematic review and meta-analysisSensitivity analysis of the association between pooled estimates of IL-6 levels and long COVID-19. A Sensitivity analysis for long COVID-19 vs healthy controls. B Sensitivity analysis for long COVID-19 vs non-PASC. Ref.: reference; MD: mean differenceBack to article page