. Author manuscript; available in PMC: 2022 Sep 1.

Published in final edited form as: Am J Otolaryngol. 2021 Mar 31;42(5):103017. doi: 10.1016/j.amjoto.2021.103017

Table 2.

Sign Rank Test Bacterial Counts Between Uses, Matched Masks

Between Post-Treatment -> Pre-Clinic the next use	Cycle	p-value
Treatment Time	1	0.40
	2	1.00
	3	0.65
	4	0.32
Treatment Heat	1	0.22
	2	n/a
	3	n/a
	4	n/a
Treatment UV	1	0.40
	2	0.84
	3	0.56
	4	n/a

No p-value is possible if all observation with a subgroup showed 0