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Table 2 Reductions in Colony-Forming Units after routine cleaning and/or disinfection compared to baseline and after routine cleaning and/or disinfection + UV-C irradiation compared to routine cleaning and/or disinfection alone

From: The use of a UV-C disinfection robot in the routine cleaning process: a field study in an Academic hospital

  ENT outpatient area Oncology outpatient area
No. of samples Median CFU (IQR) Min Max p value No. of samples Median CFU (IQR) Min Max p value
Before C&D 24 8.5 (8.5–28.3) 0 207 0.003 40 22.0 (4.3–36.0) 0 200  
After C&D 24 0 (0–2.8) 0 18   40 6.5 (2.3–20.5) 0 101  <0.001
After C&D 24 0 (0–2.8) 0 18 0.008 40 6.5 (2.3–20.5) 0 101  
After C&D + UV-C 24 0 (0–0) 0 1   40 0 (0–0) 0 5 <0.001 
  1. No. number, CFU Colony Forming Unit, IQR interquartile range, Min minimum, Max maximum, C&D cleaning and disinfection, UV-C ultraviolet C