Table 4.

Participants’ attribution matrix by the time of infection, sex, and severity (n=110).

Severity		Delta perioda (n=46), participants, n	Omicron periodb (n=64), participants, n
Mild illness (n= 61)
	Male	14	16
	Female	13	18
	Total	27	34
Moderate illness I (n=49)
	Male	10	16
	Female	9	14
	Total	19	30

^aDelta period: July 2021 to December 2021.

^bOmicron period: January 2022 to June 2022.