대한의료관련감염관리학회 Korean Society for Healthcare-associated infection Control and Prevention.

pISSN 0705-3797. eISSN 2586-1298.

Table. 1.

Table. 1.

Microbiological efficacy of UV-C and aHP

UV-C aHP P-value*
Median CFUs (IQR)
Total (n=60) 2.5 (0-18.3) 3.5 (0-13.8) 0.99
UV direct sites (n=30) 0 (0-1) 2 (0-8.8) 0.01
UV indirect sites (n=30) 19.5 (5.3-51.3) 7 (1-23.3) 0.02
Median log10 reduction (min-max)
Total (n=60) 5.52 (3.53-5.91) 5.37 (3.54-5.91) 0.86
UV direct sites (n=30) 5.91 (5.13-5.91) 5.61 (4.57-5.91) 0.002
UV indirect sites (n=30) 4.63 (3.53-5.19) 5.07 (3.54-5.91) 0.02
Modified decontamination rate
Total (n=60) 30 (50.0%) 27 (45.0%) 0.71
UV direct sites (n=30) 25 (83.3%) 16 (53.3%) 0.03
UV indirect sites (n=30) 5 (16.7%) 11 (36.7%) 0.01

*
P-value of median CFUs and median log10 reduction was calculated by Wilcoxon rank sum test and P-value of modified decon­tamination rate was calculated by chi-squared test or Fisher’s exact test, Direct sites: the sites thorough which laser pointer pass, Indirect sites: the sites thorough which laser pointer cannot pass.

Abbreviations: aHP, aerosolized Hydrogen peroxide system; CFUs, Colony-foaming units; UV-C, Ultraviolet-C device.

Korean J healthc assoc Infect Control Prev 2021;26:31~38 https://doi.org/10.14192/kjicp.2021.26.1.31
© Korean J healthc assoc Infect Control Prev