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 the incidence of pneumonia. There was statistically significant higher incidence of pneumonia in intensive care unit (ICU) compared with non-ICU nursing (fixed, risk ratio, 2.769; 95% CI 1.193 to 6.424, p=0.018, I2=0%). The horizontal lines indicate the 95% CI for the four included studies. The squares in the middle of the lines indicate the mean effect of the study. The diamond shape at the bottom indicates the 95% CI for the pooled effect.
