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Table 3 CFU after 6 months of use in patient rooms

From: Long-term antimicrobial effectiveness of a silver-impregnated foil on high-touch hospital surfaces in patient rooms

  N samples Mean (SD) p value Reduction
CFU/cm2 overall
 Control surfaces 38 7.44 (± 3.97) 0.12 0.24 log10 CFU
 Antimicrobial foil 38 4.24 (± 2.71)  
CFU/cm2 of important pathogens*
 Control 38 0.04 (± 0.17) 0.04  > 0.6 log10 CFU
 Antimicrobial foil 38 0.00(± 0.00)
  1. Very few gram-negative bacteria were isolated to make meaningful comparisons
  2. * > 90% S. aureus, E. facalis and E. faecium, see Materials and methods