Filippi 2003.

Study characteristics
Methods	Cluster RCT
Participants	Ambulatory general practices, Italy 15 343 patients, 300 providers
Interventions	CDSS reminding providers to consider antiplatelet therapy in patients with diabetes
Outcomes	Process adherence (prescribing)
Co‐Interventions	Educational: Distribution of educational materials to providers in both control and intervention groups Beyond Clinician Education: None
CDSS Features ‐ Acknowledgement of CDSS Required	Not reported
CDSS Features ‐ Other	Ambush, conveyed patient‐specific information, makes care recommendation, 'push' mode of delivery, targeted underuse
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment (selection bias)	Low risk
Incomplete outcome data (attrition bias) All outcomes	Low risk
Baseline characteristics similar?	Low risk
Unit of analysis error	High risk