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.
Participant allocation
| Opioid | No Opioid | Total | |
|---|---|---|---|
| Active | 4 | 6 | 10 |
| Sham | 5 | 6 | 11 |
| Total | 9 | 12 | 21 |
For Chronic Pain Acceptance Questionnaire, which was only obtained in 15 participants, the allocation was two active/opioid, four active/no opioid, four sham/opioid, five sham/no opioid.
