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.
a. Forest plot of the mean difference in intraoperative time (in minutes) for PSI versus SI (control). No significant difference was found (MD = 2.03, p = 0.55). There was considerable heterogeneity among studies (I2 = 86%, p < 0.00001). b. Forest plot of the mean difference in intraoperative blood loss (in mL) for PSI versus SI (control). No significant difference was found (MD = −8.25, p = 0.62). There was substantial heterogeneity among studies (I2 = 71%, p = 0.002).
