Skip to main content
. 2012 Jun 13;2012(6):CD000259. doi: 10.1002/14651858.CD000259.pub3

Zwar 1999.

Methods Design: patient or provider level RCT
Participants Country: Australia
Setting: primary care or outpatient
Specialty: GP/family physicians
N health professionals: 157
N patients: ‐
Interventions Description of Groups: AF + educational outreach vs control
Outcomes Targeted behaviour: rate of antibiotic prescribing for urti
Baseline performance: unclear
Notes Format: written
Source: investigators
Frequency: once only
Instructions: no explicit target or action plan
Nature of change: decrease
Risk of bias
Bias Authors' judgement Support for judgement
Random sequence generation (selection bias) Unclear risk Unable to assess
Allocation concealment (selection bias) Low risk Cluster trial, allocation after recruitment completed
Blinding (performance bias and detection bias) 
 All outcomes High risk Self report data
Incomplete outcome data (attrition bias) 
 All outcomes Unclear risk Unable to assess impact of dropout
Selective reporting (reporting bias) Low risk Appropriate outcomes reported
Baseline similar? Low risk Trainees similar at baseline
No contamination? Unclear risk Unable to assess
Risk of bias overall? High risk Lack of blinding

ACE: angiotensin‐converting‐enzyme (inhibitor) 
 AF: audit and feedback 
 AMI: acute myocardial infarction 
 BB: beta blocker 
 CABG: coronary artery bypass graft 
 CHD: coronary heart disease 
 CHF: congestive heart failure 
 CQI: continuous quality improvement 
 CV: cardiovascular 
 DVT: deep vein thrombosis 
 EMR: electronic medical record 
 ER: emergency room 
 FOBT: faecal occult blood test 
 MI: myocardial infarction 
 MRI: magnetic resonance imaging 
 NSAID: non‐steroidal inflammatory drug 
 RCT: randomised controlled trial 
 Rx; treatment 
 QA: quality assurance 
 QI: quality improvement 
 UTI: urinary tract infection 
 vs: versus 
 VTE: venous thromboembolism