Loo 2011b.

Study characteristics
Methods	Cluster CCT
Participants	Primary care practice within an academic medical center, Boston, USA (Beth Israel Deaconess Medical Center) 3324 patients, 37 physicians, 2 offices
Interventions	Reminders for health care proxy designation, osteoporosis screening, and influenza and pneumococcal vaccinations in patients older than 65 years
Outcomes	Process adherence (testing, documentation, vaccination)
Co‐Interventions	Educational: Distribution of educational materials and single educational session for providers in intervention group Beyond Clinician Education: Dedicated administrative assistant (‘panel manager’) who assisted patients and physicians in completing the four targeted practice behaviors in intervention group
CDSS Features ‐ Acknowledgement of CDSS Required	No
CDSS Features ‐ Other	Conveyed patient‐specific information, makes care recommendation, other concurrent CDSS, 'pull' mode of delivery, targeted underuse
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment (selection bias)	Unclear risk	N/A
Incomplete outcome data (attrition bias) All outcomes	Low risk
Baseline characteristics similar?	Low risk
Unit of analysis error	Low risk