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

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

Evaluated objects

Copper Armour™

Control

P value

n

Number (%) of samples having > 250 cfu/100 cm2

n

Number (%) of samples having > 250 cfu/100 cm2

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 **

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