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Comparative Study
. 2011 Jun;127(6):1027-33.
doi: 10.1542/peds.2010-3465. Epub 2011 May 9.

National ambulatory antibiotic prescribing patterns for pediatric urinary tract infection, 1998-2007

Hillary L Copp  1 , Daniel J Shapiro, Adam L Hersh
Affiliations
Comparative Study

National ambulatory antibiotic prescribing patterns for pediatric urinary tract infection, 1998-2007

Hillary L Copp et al. Pediatrics. 2011 Jun.

Abstract

Objective: The goal of this study was to investigate patterns of ambulatory antibiotic use and to identify factors associated with broad-spectrum antibiotic prescribing for pediatric urinary tract infections (UTIs).

Methods: We examined antibiotics prescribed for UTIs for children aged younger than 18 years from 1998 to 2007 using the National Ambulatory Medical Care Survey and National Hospital Ambulatory Medical Care Survey. Amoxicillin-clavulanate, quinolones, macrolides, and second- and third-generation cephalosporins were classified as broad-spectrum antibiotics. We evaluated trends in broad-spectrum antibiotic prescribing patterns and performed multivariable logistic regression to identify factors associated with broad-spectrum antibiotic use.

Results: Antibiotics were prescribed for 70% of pediatric UTI visits. Trimethoprim-sulfamethoxazole was the most commonly prescribed antibiotic (49% of visits). Broad-spectrum antibiotics were prescribed one third of the time. There was no increase in overall use of broad-spectrum antibiotics (P = .67); however, third-generation cephalosporin use doubled from 12% to 25% (P = .02). Children younger than 2 years old (odds ratio: 6.4 [95% confidence interval: 2.2-18.7, compared with children 13-17 years old]), females (odds ratio: 3.6 [95% confidence interval: 1.6-8.5]), and temperature ≥ 100.4°F (odds ratio: 2.9 [95% confidence interval: 1.0-8.6]) were independent predictors of broad-spectrum antibiotic prescribing. Race, physician specialty, region, and insurance status were not associated with antibiotic selection.

Conclusions: Ambulatory care physicians commonly prescribe broad-spectrum antibiotics for the treatment of pediatric UTIs, especially for febrile infants in whom complicated infections are more likely. The doubling in use of third-generation cephalosporins suggests that opportunities exist to promote more judicious antibiotic prescribing because most pediatric UTIs are susceptible to narrower alternatives.

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