P-905. Applying Encounter-level Risk-Adjustment for Standardized Antimicrobial Administration Ratios (SAAR): Is it meaningful?

Open Forum Infectious Disease

Rebekah W Moehring, MD, MPH, FIDSA, FSHEA , Elizabeth Dodds Ashley, PharmD, MHS , Rachel Addison, MT (ASCP), MPH , Whitney Buckel, PharmD , Sara E Cosgrove, MD, MS , Eili Klein, PhD , Carlos Santos, MD, MPHS , Michael J Smith, M.D., M.S.C.E , Emily S Spivak, MD, MHS , William Trick, MD , David J Weber, MD, MPH , Congwen Zhao, Master of Biostatistics , Deverick J Anderson, MD, MPH , Ben Goldstein, PhD , Michael E Yarrington, MD, MMCi

Robust Standardized Antimicrobial Administration Ratio. Histograms represent unadjusted antimicrobial use rates (A) or R-SAARs estimates (B) on the X axis.

Summary

When encounter-level risk adjustment was applied, O:E and percentile estimates changed ASP assessments. ASPs preferred encounter-level risk adjustment when asked about desire for future AU comparisons.

Citation

Moehring, Rebekah W., et al. “P-905. Applying Encounter-level Risk-Adjustment for Standardized Antimicrobial Administration Ratios (SAAR): Is it meaningful?.” Open Forum Infectious Diseases. Vol. 13. No. Supplement_1. US: Oxford University Press, 2026.

BibTex

@inproceedings{moehring2026p, title={P-905. Applying Encounter-level Risk-Adjustment for Standardized Antimicrobial Administration Ratios (SAAR): Is it meaningful?}, author={Moehring, Rebekah W and Ashley, Elizabeth Dodds and Addison, Rachel and Buckel, Whitney and Cosgrove, Sara E and Klein, Eili and Santos, Carlos and Smith, Michael J and Spivak, Emily S and Trick, William and others}, booktitle={Open Forum Infectious Diseases}, volume={13}, number={Supplement\_1}, pages={ofaf695–1111}, year={2026}, organization={Oxford University Press US} }

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