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.
Postoperative pain level depending on the operation time. Postoperative pain score showed a significant correlation with the operation time in the early (R2 = 0.020, p = 0.035), late (R2 = 0.095, p = 0.000), and total (R2 = 0.042, p = 0.006) periods.
