FRI0503 VALIDATION OF THE 2019 ACR/EULAR CLASSIFICATION CRITERIA FOR IGG4-RELATED DISEASE IN A JAPANESE KIDNEY DISEASE COHORT: A MULTI-CENTER RETROSPECTIVE STUDY BY THE IGG4-RELATED KIDNEY DISEASE (IGG4-RKD) WORKING GROUP OF THE JAPANESE SOCIETY OF NEPHROLOGY

Background: The 2019 ACR/EULAR classification criteria for IgG4-RD have recently been published 1) . In the criteria, patients with an inclusion criteria score of >20 without exclusion criteria are classified as having IgG4-RD. Objectives: To validate the 2019 ACR/EULAR classification criteria for IgG4-RD in a Japanese kidney disease cohort. Methods: The study involved Japanese patients diagnosed as having kidney disease between April 2012...