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. 2022 Sep 16;2(3):148–166. doi: 10.1097/EC9.0000000000000059

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Copyright © 2022 Shandong University, published by Wolters Kluwer, Inc.

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Subgroup analysis according to severity of patients. (A) Results in all types of studies. (B) Results in RCTs only. The dashed line represents the null line (OR/RR: 1). The purple, orange, and green lines as well as circles exhibit the results of total, critical, and noncritical groups, respectively. The area of circles denotes sample sizes. The lower and upper limits of the lines correspond to the 95% CI, the nodes in the middle represent pooled OR or RR values, and the numbers on top represent P values. CI, confidence interval; OR, odds ratio; pts, patients; RCTs, randomized controlled trials; RR, risk ratio.