Efficacy and safety of Xileisan combined with mesalazine for ulcerative colitis: A meta-analysis and trial sequential analysis

Figure 6 The results of meta-analysis and trial sequential analysis for inflammatory factors. The two Z-value curves all crossed the boundary value in the second study, indicating that the meta-analysis results of tumor necrosis factor alpha (TNF-α), and interleukin (IL)-6 are conclusive. A: TNF-α; B: IL-6. IV: Inverse variance; SD: Standard deviation; RIS: Required information size.