. 2020 Sep 11;15(9):e0238860. doi: 10.1371/journal.pone.0238860

Table 1. Statistical data analysis of disinfected and non-disinfected groups for six disinfection methods.

Disinfection method	Group	N	Median	Range	Significance	Effect size
Formaldehyde	disinfected	10	0	0	<0.001^a	0.902 ^b
Formaldehyde	non-disinfected	10	3.48x10⁶	2.12x10⁷	<0.001^a	0.902 ^b
Hydrogen peroxide + alcohol	disinfected	10	0	1.65x10⁴	<0.001^a	0.873 ^b
Hydrogen peroxide + alcohol	non-disinfected	10	3.18x10⁶	2.35x10⁷	<0.001^a	0.873 ^b
Peracetic acid in micro-cages	disinfected	10	0	5.48x10³	<0.001^a	0.886 ^b
Peracetic acid in micro-cages	non-disinfected	10	3.18x10⁶	2.35x10⁷	<0.001^a	0.886 ^b
Essential oils spray	disinfected	10	0	0	<0.001^a	0.902 ^b
Essential oils spray	non-disinfected	10	3.18x10⁶	2.35x10⁷	<0.001^a	0.902 ^b
Essential oils ultrafogger	disinfected	10	1.15x10⁵	4.20x10⁵	<0.001^a	0.845 ^b
Essential oils ultrafogger	non-disinfected	10	1.83x10⁷	3.10x10⁷	<0.001^a	0.845 ^b
Low energy electron beam	disinfected	6	0	0	0.002^a	0.886 ^b
Low energy electron beam	non-disinfected	6	9.35x10⁵	5.36x10⁶	0.002^a	0.886 ^b

^a significant difference between groups

^b presents large effect size.

A p-value of <0.05 indicates statistical significance, and effect size interpreted as low (0.1<r<0.3), medium (0.3<r<0.5) and large (r>0.5).