Clinical Implications of the Age Threshold in the 2022 ACR/EULAR Classification Criteria for Takayasu Arteritis: A Real-World Study of Patients Aged over 61 Years

Background/Objectives: The age item of the 2022 American College of Rheumatology (ACR) and the European Alliance of Associations for Rheumatology (EULAR) criteria for Takayasu arteritis (TAK) (the 2022 ACR/EULAR criteria) limits the reclassification of TAK among patients aged over 61 who were classified as TAK according to the 1990 ACR criteria. Therefore, we evaluated the clinical significance of the age item of the 2022 ACR/EULAR criteria.