Figure 2
Trends of overall and third-generation, cephalosporin-resistant Enterobacteriaceae –related hospital-acquired infections by period and by unit. (A) Trends of overall hospital acquired infections (HAIs) by period and unit are depicted. Note: For each unit, the incidence rate per year (2008, 2009 and 2010) was compared with the rate in 2011. The intervention group was unit A with targeted screening for 3GC-RE at patient admission at the end of 2010. The control group was unit B with universal screening at patient admission throughout the study. Period 1 comprised patients admitted between 2008 and the third quarter of 2010. Period 2 comprised patients admitted in the 2011 calendar year. In both units, the overall HAI incidence rate remained stable over time. (B) Third-generation, cephalosporin-resistant Enterobacteriaceae (3GC-RE)–related HAI trends by period and unit are shown. *P < 0.05. **P < 0.001. For each unit, the incidence rate per year (2008, 2009 and 2010) was compared with the rate in 2011. The intervention group was unit A with targeted screening for 3GC-RE at the end of 2010. The control group was unit B with universal screening throughout the study. Period 1 comprised patients admitted between 2008 and the third quarter of 2010. Period 2 comprised patients admitted in 2011. In unit A, the 3GC-RE-related HAI incidence rate decreased during period 2 compared with each year of period 1. In unit B, no significant decrease was observed between periods 1 and 2.