Table 1. Impact of standard cleaning and PX-UV disinfection on Clostridium difficile counts in patient rooms.

Room status	Samples taken (n)	Samples positive for C. difficile [n (%)]	c.f.u.					Reduction (%)	P-value
Min.	Mean	Median	Max.	IQR
Pre-bleach cleaning	74	26 (35)	0	2.39	0	81	11	70	0.13
Post-bleach cleaning	74	18 (24)	0	0.71	0	18	0
Pre-PX-UV	70	29 (41)	0	4.61	0	71	2	83	0.007
Cleaning
Post-PX-UV	70	16 (23)	0	0.80	0	13	0

IQR, Interquartile range.