Curtis 2007.

Methods	Type of targeted behaviour: increase in test ordering (BMD test) + prescribing Study design: cluster RCT Country: USA
Participants	Setting: rheumatology and primary care 153 providers, 949 patients Condition: taking oral glucocorticoids (high likelihood of osteoporosis)
Interventions	1. Professional intervention (audit and feedback + distribution of educational materials) 2. Control
Outcomes	Professional practice: medication for osteoporosis or a BMD test within 12 months after the intervention Patient level: none
Notes	Justification for intervention type: reported that intervention based on “adult learning principles” but no further information provided Intervention fidelity: percentage of physicians that completed online modules was measured; per protocol analysis showed significant benefit in BMD testing for clinicians who completed all intervention modules
Risk of bias
Bias	Authors' judgement	Support for judgement
Adequate sequence generation?	Unclear risk	From report: “Block randomization was used to balance the number of intervention vs control physicians randomized over time.”
Allocation concealment?	Unclear risk	Not reported
Blinding? All outcomes	Unclear risk	Not reported
Incomplete outcome data addressed? All outcomes	Low risk	No missing outcome data
Free of selective reporting?	Unclear risk	Insufficient information provided
Free of other bias?	Low risk	Contamination avoided by practice randomisation