Marcus 1995.

Methods	Country: USA Randomisation: Method not stated
Participants	20 women, mean age 38, mean CPD 23, exercise < once a week
Interventions	(a) CV equipment: group, facility, 30 ‐ 40 mins, 60% ‐ 85% HR reserve, (3 times/week for 15 weeks) + CP (once a week for 12 weeks) (b) CP as (a) + health education 3 times/week for 15 weeks Exercise began before quit date
Outcomes	7‐day PPA Validation: saliva cotinine < 10 ng/ml Follow‐up: 1, 3, 12 months
Notes	Contact time balanced between (a) and (b) Funding: not reported Conflcts of interest: Not reported
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Not stated
Allocation concealment (selection bias)	Unclear risk	Not stated
Blinding of outcome assessment (detection bias) All outcomes	Low risk	Blinding of smoking assessments not stated, but as self‐reports of smoking were validated objectively by expired CO and saliva cotinine risk is considered as low
Incomplete outcome data (attrition bias) All outcomes	Low risk	All participants were followed up and included in the analysis for the primary outcome
Selective reporting (reporting bias)	Low risk	Smoking outcomes reported as described in Methods