The aim of this study is to establish a nation-wide cohort study of IgG4-related disease
(IgG4-RD) in China.
Methods: All the patients fulfilling diagnostic criteria of IgG4-RD (2011) would be enrolled
from multi-centers around China. A online database system has been established.
Endpoints: The primary endpoint is to investigate the clinical manifestations of Chinese
IgG4-RD patients; the secondary endpoints including the demographic features,laboratory
characteristics, immunological tests, imaging and pathological features, in addition, the
treatment and prognosis of the disease.