Wongtongkam 2018.

Study characteristics
Methods	Study design: randomized controlled trial Study grouping: parallel group
Participants	Substance: alcohol Baseline characteristics Mindfulness‐based intervention Number randomized: 23 Control 1 Number randomized: 22 Overall Number randomized: 45 Included criteria: age 18 years and older, with a diagnosis of alcohol dependence and proficiency in spoken Thai language Excluded criteria: psychotic symptoms, disrupting other participants, unable to control behaviors while meditating Number missing: not reported Reason missing: n/a Baseline differences: mindfulness group higher on personal distress Age: 40.2 Percent female: % Race/Ethnicity: Thai
Interventions	Intervention characteristics Mindfulness‐based intervention Group name: Vipassana Theory: Buddhist Vipassana Duration: 5 days Timing: 1x day for 2 hours. Delivery: group Providers: Thai Buddhist monk with 30 years of practice and teaching experience Co‐intervention: residential TAU Integrity: not reported Compliance: not reported Control 1 Group name: physical exercise Theory: Duration: 5 days Timing: 1x a day for 2 hours. Delivery: unclear Providers: Co‐intervention: residential TAU Integrity: not reported Compliance: not reported
Outcomes	No eligible outcomes reported
Identification	Sponsorship source: not reported Country: Australia, Thailand Setting: residential Comments: Authors name: Nualnong Wongtongkam Institution: Charles Sturt University Email: nwongtongkam@csu.edu.au Address: School of Biomedical Sciences, Charles Sturt University, Bathurst, New South Wales 2795, Australia. COI: the authors report no conflicts of interest. Diagnosis tool: diagnosis of alcohol dependence Diagnosis type: formal Funding: not reported Journal: Alcoholism Treatment Quarterly Publication type: published report Secondary publications: none
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Judgement comment: not reported
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
Incomplete outcome data (attrition bias) All outcomes	Unclear risk	Judgement comment: not reported, although likely no dropout (residential setting)
Selective reporting (reporting bias)	Unclear risk	Judgement comment: no protocol available, no statement of primary outcome
Other bias: equivalence of baseline characteristics (selection bias)	High risk	Judgement comment: differences at baseline