Lung function and self-rated symptoms in healthy volunteers after exposure to hydrotreated vegetable oil (HVO) exhaust with and without particles

Table 3 Descriptive table of the reported symptoms during each exposure scenario

	Any reported symptom			Eye^a			Throat^b			Nose^c		Chest^d
	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
HVO_NOx	12/19	63	0.031	7/19	37	0.27 ^e	8/19	42	0.062^e	2/19	11	1/19	5
HVO_PM+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

ISSN: 1743-8977