Table 3.

Descriptive table of the reported symptoms during each exposure scenario

	Any reported symptom			Eyea			Throatb			Nosec		Chestd
	Yes/total	%	P (${\chi }^2$- test)	Yes/total	%	P (${\chi }^2$- test)	Yes/total	%	P (${\chi }^2$- test)	Yes/total	%	Yes/total	%
FA	5/18	28	–	3/18	17	ref	2/18	11	ref	1/18	6	0/18	0
HVONOx	12/19	63	0.031	7/19	37	0.27 e	8/19	42	0.062e	2/19	11	1/19	5
HVOPM+NOx	14/18	78	0.003	8/18	44	0.07	9/18	50	0.011	5/18	28	3/18	17

Descriptive table of the number of volunteers reporting any type of symptoms, symptoms categorized by type, and χ²-tests for any reported symptoms, eye and throat symptoms. The ${\chi }^2$-tests are compared to the FA exposure. χ²-tests were not performed for nose and chest symptoms due to the low number of reported symptoms. The number of subjects was 19 for HVO_NOx and 18 for FA and HVO_PM+NOx

^aItching, running and/or sore eyes. ^bSore/dry/irritated throat. ^cRunning nose and/or nose congestion. ^dChest tightness/breathlessness. ^ep values obtained from Fisher exact test