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. 2018 Oct 30;67(10):1550-1558.
doi: 10.1093/cid/ciy268.

A Statewide Antibiotic Stewardship Collaborative to Improve the Diagnosis and Treatment of Urinary Tract and Skin and Soft Tissue Infections

Timothy C Jenkins  1   2   3   4   5 , Teresa Hulett  6 , Bryan C Knepper  3 , Katherine C Shihadeh  7 , Marc J Meyer  8 , Gerard R Barber  9 , John H Hammer  10 , Heidi L Wald  4   6
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A Statewide Antibiotic Stewardship Collaborative to Improve the Diagnosis and Treatment of Urinary Tract and Skin and Soft Tissue Infections

Timothy C Jenkins et al. Clin Infect Dis. .

Abstract

Background: Colorado hospitals participated in a statewide collaborative to improve the management of inpatient urinary tract infections (UTIs) and skin and soft tissue infections (SSTIs). We evaluated the effects of the intervention on diagnostic accuracy and antibiotic use.

Methods: The main collaborative outcomes were proportion of UTI diagnoses that met criteria for symptomatic UTI; exposure to fluoroquinolones (UTI only); duration of therapy (UTIs and SSTIs); and exposure to antibiotics with broad gram-negative activity (SSTIs only). Outcomes were compared between pre-intervention and intervention periods overall and by hospital. Secondary analyses were changes in outcome trends by time series analysis.

Results: Twenty-six hospitals, including 9 critical access hospitals, participated in the collaborative. Data were reported for 4060 UTIs and 1759 SSTIs. Between the pre-intervention and intervention periods, the proportion of diagnosed UTIs that met criteria for symptomatic UTI was similar (51% vs 54%, respectively; P = .10), exposure to fluoroquinolones declined (49% vs 41%; P < .001), and the median duration of therapy was unchanged (7 vs 7 days; P = .99). Among SSTIs, exposure to antibiotics with broad gram-negative activity declined (61% vs 53%; P = .001) and the median duration of therapy declined (11 vs 10 days; P = .03). There was substantial variation in performance among hospitals. By time series analysis, only the declining trend of fluoroquinolone use was significant (P = .03).

Conclusions: The collaborative model is a feasible approach to engage hospitals in a common antibiotic stewardship intervention. Performance improvement was observed for several outcomes but varied substantially by hospital.

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