Urinary System Manifestation of IgG4-Related Disease: Clinical, Laboratory, Radiological, and Pathological Spectra of a Chinese Single-Centre Study

Table 1

Baseline features of IgG4-RUD patients.

Sex, male : female	49 : 16
Age of diagnosis, years (IQR)	59.0 (52.5-67.0)
Disease duration, years (IQR)	1.5 (0.4-10.0)
Involved organs, (IQR)	3 (2-5)
Follow-up time, years (IQR)	1.9 (0.9-3.1)
Allergy history, (%)	34 (52.3)
Other involved organs, (%)
Pancreas	20 (30.8)
Submandibular glands	12 (18.5)
Lacrimal glands	11 (16.9)
Cholangitis	7 (10.8)
Parotid glands	4 (6.2)
Sinus	2 (3.1)
Intestine	2 (3.1)

Both patients had multiple organ involvement, and intestinal mucosa biopsy fulfilled the IgG4-RD histopathological diagnostic criteria.