2.1. Analysis.
Comparison 2: NSAIDs versus cyclo‐oxygenase (COX)‐2 inhibitors (COXIBs), Outcome 1: Pain: mean change difference from baseline on a 5‐point Likert scale
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.