Lundborg 1999a.

Methods	RCT unit of allocation: physician group unit of analysis: physician group power calculation: done concealment of allocation: not clear follow up of professionals: done blinded assessment of primary outcome: done baseline measurement: done reliable primary outcome measure: done protection against contamination: done analysis appropriate: yes
Participants	204 general practitioners in 36 practices in Sweden treating adult patients with and urinary tract infection in adults (women only)
Interventions	1. educational meetings + audit and feedback material for asthma 2. Same intervention for the management of urinary tract infection
Outcomes	Professional practice: Change in rate of prescribing first choice antibiotics and short courses of antibiotics for urinary tract infection Change in rate mean number of antibiotic courses per patient for asthma Patient: None
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment?	Unclear risk	B ‐ Unclear