Peterson 1997.

Methods	CBA unit of allocation: region unit of analysis: episodes of care power calculation: not done baseline measurement: done characteristics for studies using second site as control: not clear blinded assessment of primary outcome: done protection against contamination: done reliable primary outcome measure: done follow up of professionals: done analysis appropriate: no
Participants	250 general practitioners in 2 regions of Tasmania, Australia prescribing treating adult women for urinary tract infection
Interventions	1. Printed educational materials + academic detailing 2. Printed educational materials
Outcomes	Professional practice: Change in rate of prescribing recommended antibiotics Opinions of general practitioners regarding program
Notes	Rational prescribing guidelines written in consultation with memeber of the Management Committee, Division of General Practice (Tasmania ‐ Southern region) and a clinical microbiologist emphasizing the recommendations of the Antibiotic Guidelines Sub‐Committee, Victorian Drug Usage Advisory Committee.
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment?	Unclear risk	D ‐ Not used