Development and preliminary validation of the Behçet’s syndrome Overall Damage Index (BODI)

Objective To develop and validate the evidence-based and consensus-based Behçet’s Syndrome Overall Damage Index (BODI). Methods Starting from 120 literature-retrieved preliminary items, the BODI underwent multiple Delphi rounds with an international multidisciplinary panel consisting of rheumatologi...

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Published in:Rheumatic & musculoskeletal diseases open 2020-07, Vol.6 (2), p.e001192
Main Authors: Piga, Matteo, Floris, Alberto, Espinosa, Gerard, Serpa Pinto, Luísa, Kougkas, Nikolaos, Lo Monaco, Andrea, Lopalco, Giuseppe, Orlando, Ida, Pirani, Vittorio, Santos, Ernestina, Bertsias, George, Cantarini, Luca, Cauli, Alberto, Cervera, Ricard, Correia, João, Govoni, Marcello, Iannone, Florenzo, Neri, Piergiorgio, Martins Silva, Ana, Vasconcelos, Carlos, Muntoni, Monica, Mathieu, Alessandro
Format: Article
Language:English
Subjects:
Vasculitis
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Summary:Objective To develop and validate the evidence-based and consensus-based Behçet’s Syndrome Overall Damage Index (BODI). Methods Starting from 120 literature-retrieved preliminary items, the BODI underwent multiple Delphi rounds with an international multidisciplinary panel consisting of rheumatologists, internists, ophthalmologists, neurologists, and patient delegates until consensus was reached on the final content. The BODI was validated in a cross-sectional multicentre cohort of 228 patients with Behçet’s syndrome (BS) through the study of (a) correlation between BODI and Vasculitis Damage Index (VDI) and (b) correlation between BODI and disease activity measures (ie, Behçet’s Disease Current Activity Form (BDCAF), Physician Global Assessment (PGA), Patient Global Assessment (PtGA)), c) content and face validity and (d) feasibility. Results The final BODI consists of 4 overarching principles and 46 unweighted-items grouped into 9 organ domains. It showed good to excellent reliability, with a mean Cohen’s k of 0.84 (95% CI 0.78 to 0.90) and a mean intra-class correlation coefficient of 0.88 (95% CI 0.80 to 0.95). Overall, 128 (56.1%) patients had a BODI score ≥1, with a median score of 1.0 (range 0–14). The BODI significantly correlated with the VDI (r=0.693, p
ISSN:2056-5933
2056-5933
DOI:10.1136/rmdopen-2020-001192