Fig. 5From: Tocilizumab treatment for COVID-19 patients: a systematic review and meta-analysisQuality assessment. a The funnel plots of all outcome odds ratio analysis. b The funnel plot of pooled hazard ratio analysis. c The sensitivity analysis of OR studies by omitting one at a time. d The sensitivity analysis of all HR studies. CI Confidence interval, HR Hazard ratio, OR Odds RatioBack to article page