Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Forest plot of mortality in all trials stratified by intervention. Forest plot of all‐cause mortality in trials stratified by intervention. Size of squares for risk ratio (RR) reflects the weight of the trial in the meta‐analysis. Horizontal bars are 95% confidence intervals (CI) [Colour figure can be viewed at wileyonlinelibrary.com]
