TABLE 5.

Axial arthritis items reaching consensus

Item	Responses	Proportion agreement (%)
In a clinical practice setting, IBD-associated axial arthritis should be recognised by	An IBD specialist	86
	A rheumatologist	100
IBD-associated axial arthritis should be clinically diagnosed by	A rheumatologist	100
In a clinical practice setting, IBD-associated axial arthritis should be defined as	Patient who meets ASAS classification criteria for axial arthritis as per rheumatologistsc	93
	Patients with IBD, inflammatory back pain, and consistent MRI findings as per rheumatologists	93
In a clinical practice setting, IBD-associated axial arthritis can be monitored via	Visits to rheumatologist	100
The average patient with IBD-associated axial arthritis should be seen	At least every 3 months until symptoms improve or resolve	81
Appropriate ways to assess for improvement or worsening of IBD-associated axial arthritis include	Patient report of change in back pain	75
	Patient report of overall improvement or worsening	75–76a
	Physician global assessmentb	86
In a clinical practice setting, clinical resolution of symptoms of IBD-associated axial arthritis can be defined as	Rheumatology assessment demonstrating resolution of clinical symptoms	94
In a clinical practice setting, clinical recurrence of symptoms of IBD-associated axial arthritis can be defined as	Rheumatology assessment demonstrating recurrence of clinical symptoms anytime after resolution	88
The average IBD patient with axial arthritis should be seen	As part of the standard of care visits with their IBD specialists	81
	As part of the standard of care visits with rheumatology	100

Abbreviation: IBD, inflammatory bowel disease.

^aASAS criteria for spondyloarthritis include patients with ≥3 months of back pain with or without peripheral manifestations and age at onset <45 years who have sacroiliitis on imaging plus ≥1 spondyloarthritis feature of HLA-B27 plus ≥2 other spondyloarthritis features. Spondyloarthritis features include inflammatory back pain, arthritis, enthesitis (heel), uveitis, dactylitis, psoriasis, Crohn’s/Ulcerative colitis, good response to nonsteroidal anti-inflammatory drugs, family history for spondyloarthritis, HLA-B27, and elevated C-reactive protein.⁵

^bRange in percentage is due to the inclusion of percentage agreement for improvement and for worsening (see Table S2 for a breakdown of percentages by individual items).

^cPhysician global assessment was defined by our panel with 100% consensus as the overall status of EIM based on patient symptoms, physical exam, and any relevant testing (imaging, laboratory data).