Table 3.

Isolation duration for patients with a negative NAAT and time periods for the different important steps in testing for C. difficile

	Median hours (IQR)
Time period	Pre-implementation, n = 189	Post-implementation, n = 119	P value
Isolation duration	50.8 (29.2–82.2)	28.0 (18.9–61.2)	< 0.001
From order to sample arrival at the laboratory	13.5 (2.2–20.4)	11.6 (2.8–18.1)	0.557
From sample arrival at the laboratory to test result	26.9 (22.8–29.9)	1.2 (0.8–2.2)	< 0.001
From order to final result reported to the hospital	32.9 (26.3–52.5)	17.7 (5.8–36.4)	< 0.001