Okuyemi 2013.

Methods	Setting: homeless shelters, Minnesota, USA community Recruitment: homeless adults willing to use nicotine patch
Participants	430 smokers (≥ 1 cpd for last 7 days) 25.3% female, av age 44.4, av cpd 19.3 Therapists: trained counsellors
Interventions	Pharmacotherapy: NRT; 21 mg patch for 8 weeks 1. Single session 10 to 15‐min brief advice 2. Motivational interviewing, 6 x 15 to 20‐min sessions, baseline, 1, 2, 4. 6 & 8 weeks Focus on encouraging cessation and NRT adherence
Outcomes	Abstinence at 26 weeks (7‐day PP) Validation: CO < 5 ppm
Source of Funding/CoI	National Heart Lung and Blood Institute. No declarations of interest
Notes	New for 2019 update
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	"At the baseline visit, pre‐assigned randomization numbers prepared by the study statistician determined which study arm the participant would be enrolled."
Allocation concealment (selection bias)	Unclear risk	No details given
Blinding of outcome assessment (detection bias) All outcomes	Low risk	Biochemically validated
Incomplete outcome data (attrition bias) All outcomes	Low risk	Overall 25% lost to follow‐up, not significantly different across groups