Table 6

Percentage change in response to objective tests after two hours exposure to 50 ppm m-xylene (mX)*

	0 h after exposure							3 h after exposure
	Women (n=28)			Men (n=28)				Women (n=28)			Men (n=28)
Test	Clean air	mX	p value, mX v clean air†	Clean air	mX	p value, mX v clean air†	p value, women v men‡	Clean air	mX	p value, mX v clean air†	Clean air	mX	p value, mX v clean air†	p value, women v men‡
*Calculated as the percentage change at 0 h and 3 h after exposure, respectively, compared to before exposure.
†Student’s paired t test, p value only given when <0.1.
‡Student’s t test, p value only given when <0.1.
§One male with congenital colour blindness excluded.
¶n.a., not analysed.
Colour confusion index§	0.22	−3.26	–	1.79	3.78	–	–	−2.63	−4.49	–	−1.47	7.78	–	0.09
Pulmonary function
VC	0.12	0.02	–	−0.48	0.40	–	–	−0.18	−1.66	–	−0.79	−0.77	–	–
FVC	0.82	0.40	–	−0.43	−0.49	–	–	−0.06	−2.81	0.01	−0.38	−0.76	–	0.05
FEV₁	0.55	0.83	–	0.54	0.28	–	–	−0.53	−1.73	–	−0.13	0.05	–	–
FEV₁/VC	0.41	0.82	–	1.12	−0.07	–	–	−0.44	−0.03	–	0.76	0.71	–	–
FEV₁/FVC	−0.22	0.43	–	0.46	0.78	–	–	−0.34	1.09	0.03	−0.20	0.80	–	–
FEF₂₅	1.08	2.49	–	2.08	−1.79	–	–	−0.19	0.70	–	1.82	−1.84	–	–
FEF₅₀	1.92	2.95	–	1.63	0.20	–	–	1.12	1.48	–	1.21	3.39	–	–
FEF₇₅	−0.39	2.46	–	1.64	6.88	–	–	−5.53	3.32	0.04	−2.26	6.43	–	–
PEF	−1.29	2.38	–	−0.44	−2.78	–	–	−1.15	0.75	–	−0.66	−4.13	–	–
DL_CO	1.37	5.93	–	1.94	−0.47	–	–	–	–	–	–	–	–	–
Nasal acoustic rhinometry
Minimal cross sectional area	−3.45	1.48	–	−3.34	2.93	–	–	−7.48	−3.96	–	−3.39	1.58	–	–
Volume	−5.34	−5.04	–	−10.0	−9.05	–	–	−9.24	−7.07	–	−9.55	−7.81	–	–
Inflammatory markers in nasal lavage
Lysozyme	n.a.¶	n.a.		n.a.	n.a.			32.4	33.2	–	17.3	15.3	–	–
Eosinophilic cationic protein	n.a.	n.a.		n.a.	n.a.			0.95	1.14	–	−1.32	2.83	–	–
Myeloperoxidase	n.a.	n.a.		n.a.	n.a.			4.62	51.2	–	−1.55	0.79	–	–
Albumin	n.a.	n.a.		n.a.	n.a.			1.70	36.1	–	7.11	4.24	–	–