Objective: To develop and validate classification criteria for microscopic polyangiitis (MPA).
Methods: Patients with vasculitis or comparator diseases were recruited into an international …

Objective: To develop and validate classification criteria for microscopic polyangiitis (MPA).
Methods: Patients with vasculitis or comparator diseases were recruited into an international …

Objective To develop and validate classification criteria for microscopic polyangiitis (MPA).
Methods Patients with vasculitis or comparator diseases were recruited into an international …

Objective This study applied the 2022 American College of Rheumatology/European
Alliance of Associations for Rheumatology (the 2022 ACR/EULAR) criteria for microscopic …

Background: Microscopic polyangiitis (MPA) is an anti-neutrophil antibody (ANCA)-
associated vasculitis (AAV) predominantly affecting small vessels and organs, such as the …

Background: Multiple organ involvement is a typical feature of vasculitis in general,
particularly in ANCA-associated vasculitis (AAV). The alignment of organ involvement to …

The new classification criteria for antineutrophil cytoplasmic antibodies (ANCA)-associated
vasculitis (AAV) have been eagerly anticipated since the publication of the provisional …

Objective. We investigated whether specified organ involvements, antineutrophil
cytoplasmic antibody (ANCA) positivity, Birmingham vasculitis activity score (BVAS) and five …

Background In 2022, the ACR and the EULAR proposed new classification criteria for
granulomatosis with polyangiitis (GPA) and microscopic polyangiitis (MPA) based on …

We read the comments by Pimentel-Quiroz et al with interest 1 and agree it is important to
test the performance characteristics of the 2022 ACR/EULAR Classification Criteria for the …