Abstract
Background
The treatment of urinary tract infection (UTI), the most common bacterial infection in most Western countries, is a global clinical and economic issue. Trimethoprim-sulfamethoxazole (TMP-SMX) and nitrofurantoin are the two drugs currently recommended in clinical guidelines in Israel for uncomplicated UTI in women.
Objectives
This study evaluates physician preferences for treatment and adherence to guidelines.
Method
Data were derived from the electronic records of Leumit Health Fund, one of four health management organizations in Israel. Non-pregnant women aged 18–75 years with a diagnosis of acute cystitis or UTI without risk factors for complicated UTI who were empirically treated with antibiotics from January 2001 to June 2002 were identified. The final sample comprised 7738 physician–patient encounters. Physician prescription behavior was analyzed by evaluating the proportion of treatments with each individual drug. A binary regression model was implemented to identify factors associated with suboptimal adherence to the guidelines.
Results
TMP-SMX was the most frequently prescribed drug (25.81%), followed by nitrofurantoin (14.71%), for a 40.52% rate of adherence to the guidelines [95% confidence interval (CI)=39.42, 41.61]. Drugs from the fluoroquinolone family were prescribed in 22.82% of cases. Prescription behavior was also influenced by non-clinical, non-pharmacological factors, such as physician specialty, geographic setting and patient age.
Conclusions
The majority of cases of UTI in the present study were not treated according to the current guidelines. Fluoroquinolones, though not recommended and relatively costly, were prescribed extensively. These results highlight the necessity for a remedial education program within the health care system designed to improve adherence to the guidelines for the treatment of UTI in women. As this issue is of global importance, this evaluation may serve as a model for similar studies in other settings or countries.
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Acknowledgements
The authors wish to thank Mr. Etzion Yatsiv, director of the Leumit Health Fund information system, for his kind cooperation; Mr. Shimon Sister and Dr. Amir Fruman for their assistance in programming the database used to identify the cases; and Mrs. Bella Adler for her guidance in the statistical analysis. The authors also wish to thank Mrs. Gloria Ginzach and Mrs. Marian Propp for their editorial and secretarial assistance. This study is part of Natan R. Kahan's Ph.D. dissertation.
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Kahan, E., Kahan, N.R. & Chinitz, D.P. Urinary tract infection in women—physician's preferences for treatment and adherence to guidelines: a national drug utilization study in a managed care setting. Eur J Clin Pharmacol 59, 663–668 (2003). https://doi.org/10.1007/s00228-003-0673-4
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DOI: https://doi.org/10.1007/s00228-003-0673-4