Skip to main content
  • Poster presentation
  • Open access
  • Published:

PReS-FINAL-2329: Validation of the autoinflammatory activity index (AIDAI)

Introduction

With the increasing potential for targeted therapies in autoinflammatory diseases, there is the need for validated and standardized assessment tools which can be used to evaluate the level of disease activity and response to therapy. An international collaboration, initiated by Assistance Publique-Hôpitaux de Paris (APHP) in association with the Paediatric Rheumatology International Trials Organization (PRINTO at http://www.printo.it) and supported by the EUROFEVER and EUROTRAPS networks, has previously designed the content and the preliminary scoring of an Auto-Inflammatory Disease Activity Index (AIDAI)

Objectives

To validate the AIDAI score in the four major hereditary recurrent fever syndromes (HRFs): familial Mediterranean fever (FMF), mevalonate kinase deficiency (MKD), tumor necrosis factor receptor-associated periodic syndrome (TRAPS), and cryopyrin-associated periodic syndromes (CAPS).

Methods

In 2010, an international collaboration established the content of a disease activity tool for HRFs. Patients completed a one-month prospective diary with 12 yes/no (dichotomous) items prior to a clinical appointment during which their physician assessed their disease activity by a questionnaire. Eight international experts in auto-inflammatory diseases evaluated patient's disease activity by a blinded web-evaluation and a nominal group technique consensus conference with their consensus judgment considered as gold standard. Sensitivity/specificity/accuracy measures and the ability of the score to discriminate active versus inactive patients via the best cut-off score were calculated by a receiver operating characteristic (ROC) analysis.

Results

Consensus was achieved for 98/106 (92%) cases (39 FMF, 35 CAPS, 14 TRAPS and 10 MKD) with 26 patients declared as having inactive disease and 72 active disease. The median total AIDAI score was14 (range = 0-175). An AIDAI cut-off score ≥ 9 discriminated active versus inactive patients, with sensitivity/specificity/accuracy of 89%/92%/90% respectively and an area under the curve of 98% (95%CI = 96% > 100%).

Conclusion

The AIDAI score is a valid and simple tool for the assessment of disease activity in FMF/MKD/ TRAPS/CAPS This tool is easy to use in clinical practice and has the potential to be used as a standard efficacy measure in future clinical trials.

Disclosure of interest

None declared.

Author information

Authors and Affiliations

Authors

Consortia

Rights and permissions

Open Access This article is published under license to BioMed Central Ltd. This is an Open Access article is distributed under the terms of the Creative Commons Attribution License ( https://creativecommons.org/licenses/by/2.0 ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver ( https://creativecommons.org/publicdomain/zero/1.0/ ) applies to the data made available in this article, unless otherwise stated.

Reprints and permissions

About this article

Cite this article

Piram, M., Kone-Paut, I., Lachmann, H. et al. PReS-FINAL-2329: Validation of the autoinflammatory activity index (AIDAI). Pediatr Rheumatol 11 (Suppl 2), P319 (2013). https://doi.org/10.1186/1546-0096-11-S2-P319

Download citation

  • Published:

  • DOI: https://doi.org/10.1186/1546-0096-11-S2-P319

Keywords