元分析：将森林图输出转换为百分比

Question

我是 R 的新用户。我正在尝试将我使用 metaprop 生成的森林图上的比例转换为百分比。

我看过这里 Quick question about transforming proportions to percentages - forest function in R 和 link 这个 post 指的。


mytransf = function(x)
  (x) * 100

studies <- c("Study 1", "Study 2", "Study 3")
obs <- c(104, 101,79670)
denom <- c(1146, 2613, 147766)
m1 <- metaprop(obs, denom, studies, comb.random=FALSE,  
               byseparator=": ")
forest(m1, print.tau2 = FALSE, col.by="black", text.fixed = "Total number of events",
       text.fixed.w = "Subtotal", rightcols = c("effect","ci"), 
       leftlabs=c("Study","Events","Total"), 
       xlim=c(0,0.7), 
       transf=mytransf)

输出仍然是比例，而不是百分比。我也试过“atransf”。有人能帮我解决这个问题吗？这是我目前可以生成的：picture of output

Answer 1

您可以使用 metaprop 的 pscale 选项：

library(meta)

studies <- c("Study 1", "Study 2", "Study 3")
obs <- c(104, 101,79670)
denom <- c(1146, 2613, 147766)
m1 <- metaprop(obs, denom, studies, comb.random=FALSE,  
               byseparator=": ",
               pscale=100)

forest(m1, print.tau2 = FALSE, col.by="black", 
       text.fixed = "Total number of events",
       text.fixed.w = "Subtotal", 
       rightlabs = c("Prop. (%)","[95% CI]"), 
       leftlabs=c("Study","Events","Total"), 
       xlim=c(0,70))

元分析：将森林图输出转换为百分比

Meta analysis: transform forest plot output to percentage

r

percentage

metafor