Shorey 2017.

Study characteristics
Methods	Study design: randomized controlled trial Study grouping: parallel group
Participants	Substance: various substance Baseline characteristics Mindfulness‐based intervention Number randomized: 64 Control 1 Number randomized: 53 Overall Number randomized: 117 Included criteria: 18+ years old, cleared from withdrawal by medical staff Excluded criteria: psychotic symptoms, cognitive impairment Baseline differences: more women in mindfulness group Number missing: 8 Reason missing: disobeyed unit rules, left unit voluntarily Age: 41.3 Percent female: 26% Race/Ethnicity: 92.2% white, 3.4% African American, 1.7% Hispanic, 1.7% Asian American, 0.9% Indian
Interventions	Intervention characteristics Mindfulness‐based intervention Group name: Mindfulness and acceptance group Theory: MBRP (Bowen et al., 2014), MBSR (Kabat‐Zinn, 1990), ACT (Hayes et al., 2012) Duration: 4 weeks Timing: 2x week for 1.5 hours. Delivery: group Providers: master's level graduate student in clinical psychology with training in mindfulness, ACT, and SUD treatment, personal daily practice Co‐intervention: residential TAU ‐ 12‐step based model individual and group Integrity: treatment components checklist, sessions recorded and coded for adherence, supervision from licensed psychologist Compliance: not reported Control 1: no treatment control Co‐intervention: residential TAU ‐ 12‐step based model individual and group
Outcomes	Penn Alcohol Craving Scale ‐ alcohol Outcome type: continuous outcome Reporting: fully reported Direction: lower is better Data value: endpoint Time point: post‐treatment Penn Alcohol Craving Scale ‐ drug Outcome type: continuous outcome Reporting: fully reported Direction: lower is better Data value: endpoint Time point: post‐treatment Treatment acceptability (attrition) Outcome type: dichotomous outcome Reporting: fully reported Direction: lower is better Data value: endpoint Time point: post‐treatment
Identification	Sponsorship source: NIAAA Country: USA Setting: residential Authors name: Ryan C. Shorey Institution: Ohio University Email: shorey@ohio.edu Address: Department of Psychology, Ohio University, 239 Porter Hall, Athens, OH, 45701, USA. COI: Ryan C. Shorey and Gregory L. Stuart received consulting compensation from the Cornerstone of Recovery. Diagnosis tool: receiving treatment at residential substance use program Diagnosis type: informal Funding: NIAAA Journal: Substance Use & Misuse Publication type: published report Secondary publications:
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	Judgement comment: random number generator used
Allocation concealment (selection bias)	Unclear risk	Judgement comment: not reported
Blinding of participants and personnel (performance bias) All outcomes	High risk	Judgement comment: no blinding
Blinding of outcome assessment (detection bias) Treatment acceptability (attrition)	Low risk	Objective measure
Blinding of outcome assessment (detection bias) All non‐attrition outcomes	High risk	Self‐report
Incomplete outcome data (attrition bias) All outcomes	Low risk	Judgement comment: similar attrition rates with similar reasons
Selective reporting (reporting bias)	Low risk	Judgement comment: no protocol but clear statement of plausible primary outcomes
Other bias: equivalence of baseline characteristics (selection bias)	Low risk	Judgement comment: no baseline differences