Table 2. Changes in provider accuracy with urinary tract infections (CAUTI) and Asymptomatic Bacteriuria (ASB) management (Diagnosis and treatment).

	Intervention Site				Comparison Site
	Pre-Intervention		Post-Intervention		Pre-Intervention		Post-Intervention
	Positive Cultures N = 129		Positive Cultures N = 56		Positive Cultures N = 67		Positive Cultures N = 61
	Sxs	No Sxs	Sxs	No Sxs	Sxs	No Sxs	Sxs	No Sxs
Antimicrobials prescribed	40	32	26	3	26	8	36	5
Antimicrobials not prescribed	8	49	2	25	3	30	1	19
Sensitivity (95% CI)	83% (.73-.94)		93% (.83–1.00)		90% (.79–1.00)		97% (.92–1.00)
Specificity (95% CI)	60% (.50-.71)		89% (.78–1.00)		79% (.66-.92)		79% (.63-.95)
Positive* Likelihood Ratio	2.1		8.5		4.29		4.62
Negative** Likelihood Ratio	0.28		0.08		0.13		0.04

Sxs = Positive culture with symptoms; No Sxs = Positive culture without symptoms; N = number; CI = confidence interval

*Higher +LR raises the post-test probability and helps to (Rule-in) CAUTI diagnosis and encourage appropriate treatment of CAUTI.

**Lower–LR lowers the post-test probability and helps to (Rule-out) CAUTI diagnosis, and discourage treatment of ASB.