Cossette 2011.

Methods	Setting: Specialised cardiac hospital, Canada Recruitment: All smokers who were hospitalised were asked to participate by the study nurse (not selected by motivation)
Participants	40 current daily smokers with cardiovascular disease, 60% M, av. age 57. Most in preparation stage Therapists: nurse specialised in smoking cessation
Interventions	All participants had 1 or more sessions with the study nurse during hospitalisation. Conditions differed after discharge 1. Intervention: 6 phone calls by study nurse at weeks 1, 2, 3, 4, 8, 12. If needed additional phone calls could be arranged between 3 and 6m post‐discharge. At week 3 appointment with the study nurse if requested by participant 2. Control: referral to a national quitline or a community centre for smoking cessation Pharmacotherapy: NRT, bupropion or varenicline were suggested during hospitalisation and follow‐up
Outcomes	Self‐reported abstinence at 6 m (7‐day PP) Validation: only for 1 participant
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Not specified, but generated by a centre for randomised controlled trials
Allocation concealment (selection bias)	Unclear risk	Opaque sealed envelopes
Blinding of outcome assessment (detection bias) All outcomes	High risk	Self‐reported outcomes from participants not blinded to treatment condition. Level of personal contact differed between arms
Incomplete outcome data (attrition bias) All outcomes	Unclear risk	High loss to follow‐up, but missing data similar in both groups and analyses are ITT, participants lost to follow‐up considered smokers