TABLE 1.

Colonized versus Infected Patient Room Contamination by Organism, Type of Room, and Room Location

Variable	Colonized patient rooms	Infected patient rooms	Pa
Proportion (%) of rooms	33/48 (69)	15/48 (31)
Total target organisms (MRSA and VRE), CFU, median (IQR)	25 (0–106)	0 (0–29)	.033
Organism, CFU, median (IQR)
MRSA	72 (9–222)	0 (0–62)	.141
VRE	8 (0–60)	0 (0–4)	.142
Type of room, CFU, median (IQR)
Floor	35 (8–150)	0 (0–16.5)	.077
ICU	9 (0–106)	0 (0–62)	.236
Room surface, CFU, median (IQR)
Chair	0 (0–6)	0 (0–4)	.887
Over-bed table	0 (0–5)	0 (0–3)	.901
Bedrail	0 (0–3)	0 (0–0)	.466
Sink	0 (0–1.5)	0 (0–0)	.328
Bed table	0 (0–0)	0 (0–4)	.106
Supply cart	0 (0–3)	0 (0–0)	.643
Toilet	0 (0–0)	0 (0–208)	.183
Bathroom floor	2 (0–46)	211 (211–211)	.255
Floor (room)	12.5 (2.5–225.5)	269 (269–269)	.516
Linen cart	0 (0–2)	0 (0–52)	.786
Length of stay, days, median (IQR)	16 (4–20)	7 (4–16)	.280

NOTE. CFU, colony-forming units; ICU, intensive care unit; IQR, interquartile range; MRSA, methicillin-resistant Staphylococcus aureus; VRE, vancomycin-resistant enterococci.

^aWilcoxon rank-sum test.