Interrupted time-series analysis to evaluate the impact of a behavioral change outpatient antibiotic stewardship intervention.

Objective: We evaluated the effect of a behaviorally enhanced quality improvement intervention in reducing the number of antibiotic prescriptions written for antibiotic nonresponsive acute respiratory infections (ARIs). A secondary objective was identifying whether a reduction in inappropriate antibiotic prescriptions, if present, persisted after the immediate implementation of the intervention.

Design: Nonrandomized, quasi-experimental study conducted from January 2017 through February 2020.