Table 2.

Odds ratios and lower and upper bounds of the 95% CI from the analysis on personal and temporal characteristics for high viral load (reference: positive test without high viral load).

Variable	Level	Odds ratio	Lower bound	Upper bound
VOC	Alpha	ref
	Delta	0.99	0.83	1.17
	Omicron	1.13	0.96	1.33
	transit	1.17*	1.00	1.36
Age group	[00,06)	0.33*	0.32	0.35
	[06,18)	0.74*	0.73	0.75
	[18,25)	0.93*	0.92	0.95
	[25,45)	ref
	[45,65)	1.12*	1.11	1.14
	[65, Inf)	1.31*	1.28	1.33
Sex	F	ref
	M	0.98*	0.97	0.99
Disease stage	Asymptomatic	ref
	Presymptomatic	1	0.94	1.05
	Symptomatic	2.29*	2.25	2.32
	Late Symptomatic	0.64*	0.61	0.69
	Unknown	1.08*	1.06	1.10

Coefficients on immunity status and dominant VOC were included in the Supplementary Table S2 (VOC, Variant of Concern, Age group in years; F, Female; M, Male, * = 1 outside of the 95% CI), Belgium, 29 March 2021–22 February 2022.