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Friday, October 19
Fri, Oct 19, 5:15 PM - 6:30 PM
Hall of Mirrors
Celebrating Women in Statistics and Data Science Reception and Speed Poster 3, Sponsored by Google and 84.51°

Assessment of Oral Antibiotic Prescribing Practices in WMed Outpatient Clinics (304962)

*Alyssa Woodwyk, Western Michigan University Homer Stryker MD School of Medicine 
Heather Rauch, Western Michigan University Homer Stryker MD School of Medicine 
Mark Schauer, Western Michigan University Homer Stryker MD School of Medicine 
Shun Yi Felix Wan, Western Michigan University Homer Stryker MD School of Medicine 
Glenn Dregansky, Western Michigan University Homer Stryker MD School of Medicine 
Michael Klepser, Ferris State University College of Pharmacy 

Keywords: poisson, regression, antibiotic, stewardship, clinic, EMR, logistic, prescribing, clinics

Inappropriate antibiotic use can lead to adverse health outcomes. We sought to estimate the outpatient oral antibiotic prescribing rate and related features using a novel method developed by our group. Data were collected from WMed’s electronic medical record during 2012-2014. Prescribing patterns were examined by comparing agent and dosing regimen to published guidelines. Poisson regression determined predictors of use and generalized logistic regression analyzed differences in prescribing rates for various providers, and trends across time. Oral antibiotic use was 380 per 1,000 patients (95% CI: 370, 391). Use was greater for individuals aged 18-53, females, black race, or on Medicaid (all P<0.001). Non-physicians were 10.5 times and residents 2.6 times more likely to prescribe an antibiotic than physicians. Overall, 27% of prescriptions and 68% of dosing regimens disagreed with published guidelines. Roughly 77% of discordant dosing was higher than recommended. Adults received a higher than recommended dose 82% of the time. Prescribing rates were halved by the end of the study period. This, and future research, will help us identify areas in which to focus stewardship efforts.