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. 2016 Apr 15:16:81.
doi: 10.1186/s12877-016-0255-9.

Impact of a decision-making aid for suspected urinary tract infections on antibiotic overuse in nursing homes

Darcy K McMaughan  1   2 , Obioma Nwaiwu  1 , Hongwei Zhao  1 , Elizabeth Frentzel  3 , David Mehr  4 , Sara Imanpour  5 , Steven Garfinkel  3 , Charles D Phillips  1
Affiliations

Impact of a decision-making aid for suspected urinary tract infections on antibiotic overuse in nursing homes

Darcy K McMaughan et al. BMC Geriatr. .

Abstract

Background: Antibiotics are highly utilized in nursing homes. The aim of the study was to test the effectiveness of a decision-making aid for urinary tract infection management on reducing antibiotic prescriptions for suspected bacteriuria in the urine without symptoms, known as asymptomatic bacteriuria (ASB) in twelve nursing homes in Texas.

Method: A pre- and post-test with comparison group design was used. The data was collected through retrospective chart review. The study sample included 669 antibiotic prescriptions for suspected urinary tract infections ordered for 547 nursing home residents. The main measurement for the outcome variable was whether an antibiotic was prescribed for suspected urinary tract infections with no symptoms present.

Results: Most of the prescriptions for antibiotics UTIs were written without documented symptoms - thus for asymptomatic bacteuria (ASB) (71 % during the pre-intervention period). Exposure to the decision-making aid decreased the number of prescriptions written for ASB (from 78 % to 65 % in the low-intensity homes and from 65 % to 57 % in the high-intensity homes), and decreased odds of a prescription being written for ASB (OR = 0.63, 95 % CI = 0.25 - 1.60 for low-intensity homes; OR = 0.79, 95 % CI = 0.33 - 1.88 for high-intensity homes). The odds of a prescription being written for ASB decreased significantly in homes that succeeded in implementing the decision-making aid (OR = 0.35, 95 % CI = 0.16-0.76), compared to homes with no fidelity.

Conclusions: The decision-making aid improved antibiotic stewardship in nursing homes.

Keywords: Antibiotic stewardship; Antibiotics; Asymptomatic bacteriuria; Nursing home; Urinary tract infection.

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References

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