Psychosocial Pain Management to Improve Opioid Use Disorder Treatment Outcomes

In this study, "retention on buprenorphine treatment" was defined as the time until a participant stopped taking their medication for 7 or more days in a row. This information was collected using a calendar recall method, the TimeLine Follow-Back (TLFB) measure at 3 months. The average number of days participants remained on buprenorphine before this happened was calculated, using the data collected at 3-month follow-up.

In this study, "retention on buprenorphine treatment" was defined as the time until a participant stopped taking their medication for 7 or more days in a row. This information was collected using a calendar recall method, the TimeLine Follow-Back (TLFB) measure at 12 months. The average number of days participants remained on buprenorphine before this happened was calculated, using the data collected at 12-month follow-up.

Pain level will be measured using the Numerical Rating Scale for Pain Intensity (NRS-I), an 11-point numeric rating scale (0=no pain, 10= worst pain imaginable), which will be collected at the baseline enrollment assessment and 3-month follow-up. To calculate our measure, we subtracted each participant's score at 3-month assessment and subtracted it from their baseline score. We then averaged calculated average change in scores for each intervention group.

Pain-related functioning will be measured using the pain interference subscale of the Brief Pain Inventory - Short Form (BPI), an 11-point numeric rating scale (0 = no pain/does not interfere, 10 = worst pain imaginable/completely interferes). For this study, an increase in pain-related functioning will be measured as a reduction in the pain interference scale scores over time. The BPI interference subscale measures how much pain has interfered with seven daily activities and will provide a current level of pain-related functioning (past 24-hours) at the 3-month follow-up. BPI pain interference will be calculated as the mean of the seven interference items. For each follow-up time point, the baseline value will be subtracted to obtain a change score.

Frequency of substance use will be measured using the TimeLine Follow-Back and will be collected at 3-month follow-up. During the administration, the participant will be asked to recall their alcohol and drug use utilizing a calendar-assisted structured interview that provides the participant with temporal cues to increase the accuracy of recall. At each follow-up, data will be collected for the entire period since the previous date of data collection. Percent days abstinent from substances (e.g. alcohol and drugs) will be used as the primary measure of substance use. Values shown are the treatment group average percent of days that participants were abstinent from substances after 3 months follow-up.

Pain level will be measured using the Numerical Rating Scale for Pain Intensity (NRS-I), an 11-point numeric rating scale (0 = no pain, 10 = worst pain imaginable), which will be collected at the baseline enrollment assessment and the 12-month follow-up. For each follow-up time point, the baseline value will be subtracted to obtain a change score.

Pain-related functioning will be measured using the pain interference subscale of the Brief Pain Inventory - Short Form (BPI), an 11-point numeric rating scale (0 = no pain/does not interfere, 10 = worst pain imaginable/completely interferes). For this study, an increase in pain-related functioning will be measured as a reduction in the pain interference scale scores over time. The BPI interference subscale measures how much pain has interfered with seven daily activities and will provide a current level of pain-related functioning (past 24-hours) at the 12-month follow-up. BPI pain interference will be calculated as the mean of the seven interference items. For each follow-up time point, the baseline value will be subtracted to obtain a change score.

Frequency of substance use will be measured using the TimeLine Follow-Back and will be collected at the 12-month follow-up. During the administration, the participant will be asked to recall their alcohol and drug use utilizing a calendar-assisted structured interview that provides the participant with temporal cues to increase the accuracy of recall. At each follow-up, data will be collected for the entire period since the previous date of data collection. Percent days abstinent from substances (e.g. alcohol and drugs) will be used as the primary measure of substance use. Values shown are the treatment group average percent of days that participants were abstinent from substances after 12 months follow-up.