Table 2:

MBIs for SUD studies that assessed acceptability

Citation	Evaluation Instrument	Time of Acceptability Measurement	Sample	Acceptability Findings
Amaro et al. [8]	Participation (attendance) and satisfaction questionnaire	Participation: each session; satisfaction: last session	N = 318; Mage = 33.9; all female; 45.3% Hispanic, 34.6% non-Hispanic Black, 20.1% non-Hispanic White and other	19.8% attended 1–4 sessions, 35.8% attended 5–9 sessions, 44.3% did not attend any groups; participant satisfaction was high (M = 3.4, SD = 0.3), but completion was modest (36%)
Bowen et al. [18]	Practice	Weekly and 4 months postintervention	N = 168; Mage = 40.5; 36.3% female adults; 51.8% Caucasian, 28.6% African American, 15.3% multiracial, 7.7% Native American	Practice reported by 86% at postintervention and 54% at 4-month follow-up; practice at 4-month follow-up: M = 4.7 days, M = 29.9 minutes per session
Bowen et al. [28]	Satisfaction	Immediately following last session	N = 15; adults from methadone clinic; Mage = 43.8; 67% female; 93% Caucasian	High perceived importance of course (M = 8.7, SD = 1.11); high stated likelihood of continuing formal (M = 9.0, SD = 1.2) and informal (M = 9.4, SD = 0.8) mindfulness practice; deemed feasible and acceptable, but acknowledged low attendance and retention rates
Witkiewitz et al. [29]	15-week follow-up rates	15-weeks postintervention	N = 70; adult females in residential treatment for criminal offenders; 63.8% non-Hispanic White, 17.4% African American, 13% Native American, 4.3% Asian, 1.4% Hispanic	Significantly better follow-up rates in racial and ethnic minority versus non-Hispanic White participants assigned to MBRP (85.7% vs. 52.6%); suggested MBRP may be more acceptable to minority clients

M = Mean; M_age = mean age; MBIs = mindfulness-based intervention; MBRP = mindfulness-based relapse prevention; N = number of participants; SD = standard deviation; SUD =substance use disorder.