The devil's in the defaults: An interrupted time-series analysis of the impact of default duration elimination on exposure to fluoroquinolone therapy.

Objective: To determine whether removal of default duration, embedded in electronic prescription (e-script), influenced antibiotic days of therapy.

Design: Interrupted time-series analysis.

Setting: The study was conducted across 2 community hospitals, 1 academic hospital, 3 emergency departments, and 86 ambulatory clinics.