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Table 3 Bacterial burden on Copper Armour™ coated surfaces and control surfaces during 8 weeks of pilot study in an adult intensive care unit

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

Evaluated object Copper Armour™ Control P value % Reduction
n Average cfu/100 cm2 Media cfu/100 cm2 n Average cfu/100 cm2 Median cfu/100 cm2   
Total aerobic microbial load
 Bed rails 32 1129 120 32 3323 1440 0.018 * 66.0
 Overbed Table 14 762,9 0 16 1755 960 0,045 * 56.5
 Bedside Table 16 1793 60 16 2108 120 0,303 14.9
 IV Pole 16 157,5 0 16 337,5 120 0,195 53.5
Staphylococcus spp.
 Bed rails 32 270 0 32 2445 300 0,001 ** 88.9
 Overbed Table 14 462,9 0 16 720 240 0,106 35.7
 Bedside Table 16 270 0 16 997,5 0 0,289 72.9
 IV Pole 16 22,5 0 16 60 0 0,231 62.5
Yeasts/Fungi
 Bed rails 32 697,5 0 32 195,0 0 – –
 Overbed Table 14 68,5 0 16 15,00 0 – –
 Bedside Table 16 630 0 16 1155 0 0,279 45.5
 IV Pole 16 15 0 16 37,5 0 0,367 60
  1. * p < 0.05, ** p < 0.001 established using Mann-Whitney U test (one-tailed)
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