Hennessy 2002.

Methods	CBA unit of allocation: village unit of analysis: nasopharyngeal swab specimen (for Streptococcus pneumoniae resistance assessment), episode of care (for antibiotic prescribing ) power calculation: not done baseline measurement: not done characteristics for studies using second site as control: not clear blinded assessment of primary outcome: not clear protection against contamination: done reliable primary outcome measure: not clear follow up of professionals: not clear analysis appropriate: no
Participants	Physicians and community health aides and community residents in 13 villages in Alaska, USA treating patients for with respiratory tract infection
Interventions	1. Multi‐faceted interventions including educational meetings for health care providers and printed educational materials + educational meetings for villagers 2. No intervention control ‐ intervention extended to control villages in second year of study
Outcomes	Professional practice: Change in rate of prescribing of oral antibiotics Patient: Change in proportion of nasopharyngeal Streptococcus pneumoniae isolates resistant to penicillin
Notes	Campaign message based upon evidence based guidelines: Principles of Judicious Antibiotic Use
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment?	Unclear risk	D ‐ Not used