Table 2 Association of environmental agents according to organ involvement and antineutrophil cytoplasmic antibody status.

Item	Farm (n)	High dust (n)	High solvent (n)	Allergy (n)	Gardening (n)	Animals (n)
Renal*	5	2	1	2	3	3
No renal	0	1	0	1	1	1
Pulmonary†	5	2	1	2	4	4
No pulmonary	0	1	0	0	0	0
cANCA	5	2	1	2	3	3
No cANCA	0	1	0	1	1	1

cANCA, circulating anti‐neutrophil cytoplasmic antibody.*Haematuria, increased creatinine level or renal biopsy findings, consistent with vasculitis.

†Haemoptysis or chest radiography findings, consistent with vasculitis.