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.
Average similarity ratings categorised by therapy type, comparing active and control interventions across 25 features. The overall mean across all items is provided in the top row. The end of each bar indicates the average rating. Measures of variability are provided in a supplementary table (supplemental digital content 3, available at http://links.lww.com/PAIN/B673) and the number of trials per group in the overview table 3.
