Price 2017.

Study characteristics
Methods	Cluster RCT
Participants	Primary care provincial research network, BC, Canada (University of British Columbia Department of Family Practice Research Network) 4825 patients, 28 primary care physicians, 8 practices
Interventions	Informed physicians of potentially inappropriate prescriptions in the elderly by application of 40 Screening Tool of Older People’s Prescriptions (STOPP) rules
Outcomes	Process adherence (prescribing)
Co‐Interventions	Educational: None Beyond Clinician Education: None
CDSS Features ‐ Acknowledgement of CDSS Required	No
CDSS Features ‐ Other	Ambush, conveyed patient‐specific information, decision support was complex, included supporting information on‐screen, makes care recommendation, other concurrent CDSS, 'push' mode of delivery, targeted overuse
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	Low risk