Pedersen 2005.

Methods	Study design: Randomized controlled trial Setting: hospital, Denmark Recruitment: Inpatients with cardiac disease
Participants	105 smokers 36% women, ˜70% aged > 50
Interventions	Therapists: counsellors 1. Usual‐care control: in‐hospital advice to quit + information about NRT + NRT available 2. Intervention: As 1, plus 5 x 30‐min post‐discharge contacts
Outcomes	Abstinence at 12 m (PP) Validation: none
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Randomized, method not described
Allocation concealment (selection bias)	Unclear risk	Sealed envelopes, but not stated to be numbered
Blinding of outcome assessment (detection bias) All outcomes	High risk	No validation of abstinence
Incomplete outcome data (attrition bias) All outcomes	Low risk	10 (9.5%) lost to follow‐up, included in ITT analysis