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Antimicrobial stewardship in rural nursing homes: Impact of interprofessional education and clinical decision tool implementation on urinary tract infection treatment in a cluster randomized trial

  • Darren K. Pasay (a1), Micheal S. Guirguis (a2), Rhonda C. Shkrobot (a1), Jeremy P. Slobodan (a3), Adrian S. Wagg (a4), Cheryl A. Sadowski (a5), John M. Conly (a6), Lynora M. Saxinger (a7) and Lauren C. Bresee (a8)...



To measure the impact of an antimicrobial stewardship initiative on the rate of urine culture testing and antimicrobial prescribing for urinary tract infections (UTIs) between control and intervention sites. Secondary objectives included evaluation of potential harms of the intervention and identifying characteristics of the population prescribed antimicrobials for UTI.


Cluster randomized controlled trial.


Nursing homes in rural Alberta, Canada.


The study included 42 nursing homes ranging from 8 to 112 beds.


Intervention sites received on-site staff education, physician academic detailing, and integrated clinical decision-making tools. Control sites provided standard care. Data were collected for 6 months prior to and 12 months after the intervention.


Resident age (83.0 vs 83.8 years) and sex distribution (female, 62.5% vs 64.5%) were similar between the groups. Statistically significant decreases in the rate of urine culture testing (−2.1 tests per 1,000 resident days [RD]; 95% confidence interval [CI], −2.5 to −1.7; P < .001) and antimicrobial prescribing for UTIs (−0.7 prescriptions per 1,000 RD; 95% CI, −1.0 to −0.4; P < .001) were observed in the intervention group. There was no difference in hospital admissions (0.00 admissions per 1,000 RD; 95% CI, −0.4 to 0.3; P = .76), and the mortality rate decreased by 0.2 per 1,000 RD in the intervention group (95% CI, −0.5 to −0.1; P = .002). Chart reviews indicated that UTI symptoms were charted in 16% of cases and that urine culture testing occurred in 64.5% of cases.


A multimodal antimicrobial stewardship intervention in rural nursing homes significantly decreased the rate of urine culture testing and antimicrobial prescriptions for UTI, with no increase in hospital admissions or mortality.


Corresponding author

Author for correspondence: Darren K. Pasay, Email:


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PREVIOUS PRESENTATION: A preliminary analysis of this study was presented as an oral presentation at the Canadian Pharmacists Association Conference 2017 on June 4, 2017, in Quebec City, Quebec, Canada.



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