Table 1.

Contamination frequency and simple analysis according to the sampling point and determining factors

Risk factor	Global		Bedside table		Bed		Wall		Sink
	n (%)	p	n (%)	p	n (%)	p	n (%)	P f	n (%)	p
Intervention
Yes	97 (31,5)	0.261	40 (51.3)*	0.001	29 (38.2)	0.949	3 (3.8)	0.317	25 (32.9)	0.172
No	84 (27,4)		20 (26.0)		29 (38.7)		1 (1.3)		34 (43.6)
Surface type
Rough (Wood or paint)	64 (20.6)*	0.000	60 (38.7)	-	-	-	4 (2.6)	-	-	-
Smooth (metal)	117 (38.4)		-		58 (38.4)		-		59 (38.3)
Application Method
Spray	122 (26.5)*	0.005	60 (38.7)	-	58 (38.4)	-	4 (2.6)	-	-	-
Monolayer roll	59 (38.3)		-		-		-		59 (38.3)
Isolated patient
Yes	56 (32.6)	0.148	23 (53.5)*	0.009	16 (37.2)	0.889	1 (2.3)	0.963	16 (37.2)	0.853
No	96 (26.5)		27 (30.0)		35 (38.5)		2 (2.2)		35 (35.6)
Period
Weeks 1-7	120 (36.5)*	0.000	40 (48.2)*	0.009	38 (46.9)*	0.021	0 (0.0)*	0.044	42 (51.2)*	0.000
Weeks 8-13	61 (21.3)		20 (7.8)		20 (28.6)		4 (5.6)		17 (23.6)

* P < 0.05

f Denotes use of the Fisher test