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.
Funnel plot of the studies included in our meta-analysis. Publication bias was assessed using a funnel plot regarding postoperative infectious complications, which contained the largest number of studies. The funnel plot of infectious complications was symmetrical based on visual inspection suggesting no evidence of publication bias.
