I performed a meta-analysis using the meta package, metagen function in R but the output is just effect estimates with confidence intervals and not p-values. Can anyone suggest how to derive the -pvalue for each subgroup ?
Thanks!
code:
meta_analysis_data <- meta_analysis_data[meta_analysis_data$method=="Inverse variance weighted",]
metaanalysis <- metagen(TE,seTE,data=meta_analysis_data,studlab = Study,comb.random=TRUE, method.tau="DL",prediction = TRUE,sm="SMD")
metanalysis <- update.meta(metaanalysis,byvar=meta_analysis_data$outcome,comb.random=TRUE,comb.fixed=FALSE)
sink("results_metaanalysis.txt")
print(metanalysis)
sink()