Table 1.

Clinical characteristics of cases and controls included in association analyses after data quality control

	Cases	Controls
Total	573	1595
Females, n (%)	290 (51)	1169 (73)
Age at diagnosis, mean (SD)	54 (18)	–
Age at sampling, mean (SD)	59 (17)	58 (14)
GPA, n (%)	434 (76)	–
MPA, n (%)	139 (24)	–
PR3-ANCA+, n (%)	411 (72)	–
MPO-ANCA+, n (%)	162 (28)	–
ENT involvement,* n (%)	380 (66)	–
Kidney involvement,* n (%)	383 (67)	–
Pulmonary involvement,* n (%)	303 (53)	–
Relapse†, n (%)	217 (54)	–

*Defined as glomerulonephritis (kidneys) or any kind of pulmonary/ENT involvement, respectively.

†Missing data, n=172.

ANCA, antineutrophil cytoplasmic autoantibody; ENT, ear–nose–throat; GPA, granulomatosis with polyangiitis; MPA, microscopic polyangiitis; MPO, myeloperoxidase; PR3, proteinase 3.