Figure 3.

Unadjusted Antibiotic Prescribing for Acute Respiratory Tract Infections Before and After All Interventions at A) LAC+USC and B) OV-UCLA.

The pre-period refers to the time before any interventions were implemented (T1 at both sites—see Figure 2). The post-period refers to the time after the case-audit feedback (the main intervention) was implemented at each site (T2 at LAC+USC and T3 at OV-UCLA). Error bars depict 95% CIs. Per the analysis plan, tests of statistical significance were not performed on unadjusted antibiotic prescribing rates.