Fig. 3

Comparisons of senior and junior physicians regarding the associated effect of age on (a) knowledge of VRE. The mean increase in age associated with VRE knowledge was significant among senior physicians; (b) knowledge of CRE. The mean increase in age associated with CRE knowledge was significant among senior physicians. Error bars represent 95% confidence intervals of means. Comparisons performed with multiple linear regression using effect size determination — with possible interaction of the variables computed by analysis of covariance (ANCOVA). CRE, carbapenem resistant enterobacteria; VRE, vancomycin resistant enterococcus species