Scheel 2002.

Methods	Cluster RCT Follow up: providers: DONE patients: DONE Blinded assessment: DONE Baseline: NOT DONE? Reliable outcomes: DONE Protection against contamination: DONE Overall quality: HIGH
Participants	General practitioners, back pain patients, their employers and local National Insurance Administration staff in 65 municipalities in 3 counties Country: Norway Proportion of eligible providers who participated: 100% Primary care Academic/Teaching setting: NON‐TEACHING Type of targeted behaviour: GENERAL MANAGEMENT OF A PROBLEM (use of active sick leave for back pain) Complexity of targeted behaviour: MEDIUM
Interventions	1. CME: continuing education workshop for GPs on low back pain and active sick leave + targeted information to patients, the local National Insurance Administration staff and employers + a new check box in the form for reporting sick leave (=reminder) + a standard agreement plan between employer and employee for rehabilitation + desktop summary for GPs of clinical practice guidelines + resource person for each region to support GPs and follow‐up patients on sick leave for >16 days 2. No intervention control + a third group having a passive strategy: targeted information, check box in report of sick leave, standard agreement and desktop summary
Outcomes	Professional practice: % of patients on active sick leave Patient: none Seriousness of outcome: LOW
Notes	No baseline data
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment (selection bias)	Low risk	A ‐ Adequate