Figure 3

Number of patients screened for third-generation, cephalosporin-resistant Enterobacteriaceae at admission and proportion of patients positive for third-generation, cephalosporin-resistant Enterobacteriaceae . Red columns represent the number of patients screened for third-generation, cephalosporin-resistant Enterobacteriaceae (3GC-RE) in unit A. Blue columns represent the number of patients screened for 3GC-RE in unit B. The lines represent the proportion of patients positive for 3GC-RE at admission among all screened patients at admission for each unit. In unit A, the intervention unit, the number of patients screened at admission was divided by 5 between period 1 (universal screening, 2008 to 2010) and period 2 (targeted screening, 2011). The proportion of patients positive for 3GC-RE at admission increased between periods 1 and 2 (P = 0.004). No changes were observed in unit B, the control unit, between periods 1 and period 2 (P = 0.98).