Skip to main content
. Author manuscript; available in PMC: 2014 Dec 1.
Published in final edited form as: Ann Surg. 2013 Dec;258(6):10.1097/SLA.0b013e3182895bb0. doi: 10.1097/SLA.0b013e3182895bb0

Figure 7.

Figure 7

Forest plot of the pooled relative risk (RR) for the outcome of pneumonia. Pooled RR is 0.45, 95% confidence interval 0.29-0.67. χ2 for heterogeneity=5.79, p=0.215; I2=31.