Strecher 1991.

Methods	Cluster RCT Follow up: providers: DONE patients: NOT DONE Blinded assessment: NOT CLEAR Baseline: NOT DONE Reliable outcomes: NOT CLEAR Protection against contamination: NOT DONE Overall quality: LOW
Participants	261 residents in 11 primary care training programmes providing smoking counselling Country: USA Proportion of eligible providers who participated: 96% Hospital, outpatients Academic/Teaching setting: UNIVERSITY‐BASED Type of targeted behaviour: PREVENTIVE CARE (smoking counselling) Complexity of targeted behaviour: LOW
Interventions	1. CME: 1‐hour tutorial including 10‐min slide presentation, 10 min counselling approach, 20‐min group discussion + 1‐hour small group or individual follow up 2. Same tutorial + prompting program (chart‐based reminders) 3. Prompting program
Outcomes	Professional practice: counselling frequency, mean number of five techniques used per patient, 5 counselling techniques Patient: none Seriousness of outcome: MODERATE
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment (selection bias)	Unclear risk	B ‐ Unclear