Ramos 2010.

Study characteristics
Methods	Design: 3‐group randomized controlled trial Setting; A primary healthcare setting in Mallorca, Spain Recruitment: Patients who met inclusion criteria were invited to participate
Participants	287 adults who smoked, who are preparing to quit. (81 in individual intervention, 111 in group intervention, 95 control), av. age 44, av. cpd 20
Interventions	Intervention 1: As control (below), plus individual counseling on pharmacological treatment • Participants attended 6 visits during which the following were provided: counseling, pharmacotherapy, psychological support and standard follow‐up • Physicians and nurses received training on how to implement intensive interventions Intervention 2: As control below, plus group counseling on pharmacological treatment • Participants attended 6 visits during which the following were provided: counseling, pharmacotherapy, psychological support and standard follow‐up • Physicians and nurses received training on how to implement intensive interventions Control: • Participants received pharmacotherapy (nicotine derivatives or bupropion) • Physician and nurse received basic training on how to diagnose smoking addiction and provide brief counseling • Support provided by microteam, composed of 1 physician and 1 nurse
Outcomes	Continuous abstinence at 12m Validation: Expired CO < 6 ppm
Funding Source	Health Research Fund of Spain's Ministry of Health and Consumer Affairs, Health Promotion and Preventive Activities in Primary Health Care Research Network
Author's declarations of interest	Authors declared that they had no competing interest
Notes	Strategy: Adjunctive counseling + Provider training Level: Patient + Provider Comparison type: Multicomponent vs. standard care
Risk of bias
Bias	Authors' judgement	Support for judgement
Sequence Generation	Unclear risk	No details reported.
Allocation concealment	Low risk	QUOTE: "an allocation concealment method based on the use of sequentially‐numbered, opaque, sealed envelopes was used"
Blinding of outcome assessors All outcomes	Low risk	Smoking status biochemically validated.
Incomplete outcome data All outcomes	High risk	Follow‐up at 12 months was very low and completed in 31% of cases in intervention 1 (individual), 28% in the intervention 2 (group) and 24% in the control group (minimal intervention).