Christakis 2001.

Methods	RCT unit of allocation: provider unit of analysis: episode of care power calculation: not done concealment of allocation: done follow up of professionals: not done blinded assessment of outcome: done baseline measurement: done reliable primary outcome measure: done protection against contamination: not done analysis appropriate: yes
Participants	38 pediatricians, pediatric resident physicians and nurse practitioners in an academic pediatric primary care clinic in Seattle, USA treating children with acute otitis media
Interventions	1. Physician reminder (online prescription writer which offered summary of evidence for prescribing for acute otitis media) 2. No reminder (online prescription writer with no information on acute otitis media)
Outcomes	Professional practice: Change in average duration of therapy for acute otitis media Change in rate of prescribing antibiotics for acute otitis media
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment?	Unclear risk	D ‐ Not used