Intervention Study to Improve Antibiotic Prescription in Outpatient Care

Background

Antimicrobial resistance has become a world-wide problem and antibiotic consumption is a major driving force for the development of resistance. Thus optimization of antibiotic prescription and reduction of unnecessary antimicrobial treatment are essential in the prevention and reduction of antimicrobial resistance rates.

The goal of this study is the qualitative and quantitative improvement of antibiotic prescription in outpatient care. The study will take place within a Swiss-wide sentinel surveillance network consisting of general practitioners, pediatricians and physicians specialized in internal medicine. The participating physicians will be randomised in a control and intervention group. The intervention group will receive therapeutic guidelines for the treatment of upper and lower respiratory tract infections and lower urinary tract infections. Furthermore, regular feed-backs on the prescription pattern of the sentinel physicians in the last months will be provided.

Information about each antibiotic prescription, its indication and the characteristics of the patients will be collected by the sentinel physicians. The standardized reporting of antibiotic prescription by sentinel physicians has been carried out in Switzerland since 2006.

Our hypothesis is that the intervention will affect the antibiotic prescription pattern and that the investigators will observe an optimization of antibiotic prescription and a decrease in the number of antibiotic prescriptions.

Objective

Primary goals:

• Increase of the percentage of penicillin prescriptions for upper and lower respiratory tract infections
• Increase of the percentage of TMP/SMX prescriptions for lower urinary tract infections in adults

Secondary goal:

• Decrease of the percentage of quinolone prescriptions for COPD exacerbations in adults
• Decrease of the number of antibiotic prescriptions for sinusitis and other upper respiratory tract infections

Methods

Prospective cluster-randomised intervention study. The intervention is the mailing of treatment guidelines for upper and lower respiratory tract infections and lower urinary tract infections as well as regular feed-backs on the antibiotic prescription patterns of the sentinel physicians during the past months.

Inclusion criteria

• Patients with respiratory tract infections or urinary tract infections

Exclusion criteria

• Patients with chronic disease requiring regular antibiotic treatment