McClure 2011.

Methods	Setting: Pacific Northwest, USA Recruitment: Members of large regional health plan identified through automated records
Participants	52 adults with evidence of smoking in last year, depression in last 2 years, and without high levels of physical activity. 33% M; av. age 44.5; av. cigs/day 10.6; av. FTND 2.37
Interventions	1. Intervention: usual care + phone‐based Step Up proactive counselling programme (1 motivational call, 9 weekly CBT calls and 2 follow‐up ‘booster calls’ according to participant need) 2. Control: usual care treatment for depression, smoking and physical activity (incl. S‐H material and referral information for phone‐based smoking cessation programme)
Outcomes	Self‐reported abstinence at 6 m (7‐day PP) Validation: none
Notes	Pilot study of an intervention also addressing physical activity and depression Number abstinent not provided and hence extrapolated from percentages given
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Quote: "randomly assigned," stratified by baseline antidepressant use". Method of sequence generation not specified
Allocation concealment (selection bias)	Unclear risk	Method not specified
Blinding of outcome assessment (detection bias) All outcomes	High risk	Self‐reported outcome, participants not blinded to treatment condition. Level of personal contact differed between arms
Incomplete outcome data (attrition bias) All outcomes	Low risk	Participants lost to follow‐up counted as smokers, similar numbers lost in each group (4/27 intervention, 2/25 control)