Table 4.

Predictive value of ESBL-E in surveillance cultures, FN episodes of patients with or without ESBL-E colonization and/or with ESBLE-E BSI

	ESBL-E BSI	No ESBL-E BSI	Total
ESBL-E colonization	6	39	45
No ESBL-E colonization	2	626	628
Total	8	665	673

Accuracy: 0.94, 95% CI: 0.91 – 0.96

Sensitivity: 75.0%

Specificity: 94.1%

PPV*: 13.3%

NPV*: 99.7%

*These values are dependent on disease prevalence