Antimicrobial properties of a novel copper-based composite coating with potential for use in healthcare facilities

Table 4 Frequency of a microbial burden of > 250 cfu/100 cm² on Copper Armour™ coated surfaces and control surfaces

Evaluated objects	Copper Armour™		Control		P value
Evaluated objects	n	Number (%) of samples having > 250 cfu/100 cm²	n	Number (%) of samples having > 250 cfu/100 cm²	P value
Bed rails	32	13 (40.6)	32	22 (68.8)	0.023 *
Overbed Table	14 **	5 (35.7)	16	12 (75)	0.030 *
Bedside Table	16	6 (37.5)	16	7 (43.7)	0.718
IV Pole	16	2 (12.5)	16	7 (43.7)	0.113
Total	78	26 (33.3)	80	48 (60)	0.001 **

* p < 0.05, ** p < 0.001 established using either Pearson χ² or Fisher’s Exact tests
**Two samples were discarded because the surface was contaminated with blood