Fig. 1: Monthly control charts displaying Antibiotic Utilization Rate (AUR).

Unstratified p-chart showing all gestational age (GA) total AUR (A) compared to all GA first seven day AUR (B); stratified p-chart showing total AUR (C) compared to first seven day AUR for ≥35 weeks’ gestation (D); stratified p-chart showing total AUR (E) compared to first seven day AUR for <35 weeks’ gestation (F).