Loo 2011a.

Study characteristics
Methods	Cluster CCT
Participants	Primary care practice within an academic medical center, Boston, USA (Beth Israel Deaconess Medical Center) 3266 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 education session to providers in intervention group Beyond Clinician Education: None
CDSS Features ‐ Acknowledgement of CDSS Required	No
CDSS Features ‐ Other	Conveyed patient‐specific information, developed by study investigators, included supporting information on‐screen, 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