Potential change mechanisms
The control and intervention scores are comparable over the items of each question at baseline.The two baseline only questions (2 and 3) (The motivation to reduce opioids question showed a trend for more participants wanting to cut down or stop their opioids at baseline. There is a weak trend showing the self-management group to be more slightly more motivated to continue tapering at later timepoints. However, this should be viewed with caution due to the high proportion of missing data for this item.Our statistician ran statistical analyses on the full data collected; baseline 4, 8 and 12 months to look for any impact of responses to the change mechanism questions on main trial outcomes (see 