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Table 1 Methicillin-resistant Staphylococcus aureus and bacterial heterotrophic plate counts before and after disinfection per room for five high-touch surfaces total

From: Evaluation of a pulsed-xenon ultraviolet room disinfection device for impact on contamination levels of methicillin-resistant Staphylococcus aureus

  Colony count measures of central tendency and variability by room mean; median (IQR)  
  Before After Reduction
HPC    
Manual arm 255.0; 278.0 (132-304) 60.4; 31.0 (15-70) 76.3%
PPX-UV arm 449.0; 364.5 (332-530) 8.4; 4.0 (1-10) 98.1%
  Before After  
MRSA    
Manual arm 127.3; 28.5 (8-143) 11.3; 1.0 (0-4) 91.1%
PPX-UV arm 108.2; 123.0 (14-183) 0.7; 0.0 (0-1) 99.4%
  1. HPC: Bacterial heterotrophic plate counts.
  2. MRSA: Methicillin-resistant Staphylococcus aureus.
  3. PPX-UV: Portable pulsed xenon ultraviolet.