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Frequency of Axial Spondyloarthritis Diagnosis Among Patients Seen by US Rheumatologists for Evaluation of Chronic Back Pain

OBJECTIVE: To determine the proportion of patients with axial spondyloarthritis (SpA) among those with chronic back pain and ≥1 of 3 SpA features in the US. METHODS: The study was conducted at rheumatology practices in the US. Patients were required to have chronic back pain for ≥3 months beginning...

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Autores principales: Deodhar, Atul, Mease, Philip J., Reveille, John D., Curtis, Jeffrey R., Chen, Su, Malhotra, Kailash, Pangan, Aileen L.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5094500/
https://www.ncbi.nlm.nih.gov/pubmed/26816002
http://dx.doi.org/10.1002/art.39612
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author Deodhar, Atul
Mease, Philip J.
Reveille, John D.
Curtis, Jeffrey R.
Chen, Su
Malhotra, Kailash
Pangan, Aileen L.
author_facet Deodhar, Atul
Mease, Philip J.
Reveille, John D.
Curtis, Jeffrey R.
Chen, Su
Malhotra, Kailash
Pangan, Aileen L.
author_sort Deodhar, Atul
collection PubMed
description OBJECTIVE: To determine the proportion of patients with axial spondyloarthritis (SpA) among those with chronic back pain and ≥1 of 3 SpA features in the US. METHODS: The study was conducted at rheumatology practices in the US. Patients were required to have chronic back pain for ≥3 months beginning at <45 years of age, no prior SpA diagnosis, and ≥1 of the following 3 SpA features: HLA–B27 positivity, current inflammatory back pain, and magnetic resonance imaging (MRI) or radiographic evidence of sacroiliitis. Medical history and physical examination findings, pelvic radiographs, MRIs of sacroiliac joints, C‐reactive protein (CRP) level, and HLA–B27 status were obtained. Investigators were asked if a clinical diagnosis of axial SpA could be made based on the results. Data were also analyzed separately to determine if patients fulfilled the Assessment of SpondyloArthritis international Society (ASAS) criteria for axial SpA and/or modified New York criteria for ankylosing spondylitis (AS). RESULTS: A total of 751 patients were enrolled (46% were existing patients in rheumatology practices, 40% were new referrals, and 14% were self referred). Among patients with available data, 319 of 697 (46%) were diagnosed as having axial SpA by the investigator, and 348 of 744 (47%) fulfilled the ASAS criteria, of whom 238 were classified as having nonradiographic axial SpA and 108 as having AS; 2 had missing data. Using investigator's clinical diagnosis as the gold standard, the specificity and sensitivity of the ASAS criteria were 79% and 81%, respectively. CONCLUSION: Our findings indicate that among patients with chronic back pain for ≥3 months beginning at ages younger than 45 years, the presence of ≥1 of 3 SpA features is an effective way to identify those with possible axial SpA.
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spelling pubmed-50945002016-11-09 Frequency of Axial Spondyloarthritis Diagnosis Among Patients Seen by US Rheumatologists for Evaluation of Chronic Back Pain Deodhar, Atul Mease, Philip J. Reveille, John D. Curtis, Jeffrey R. Chen, Su Malhotra, Kailash Pangan, Aileen L. Arthritis Rheumatol Spondyloarthritis OBJECTIVE: To determine the proportion of patients with axial spondyloarthritis (SpA) among those with chronic back pain and ≥1 of 3 SpA features in the US. METHODS: The study was conducted at rheumatology practices in the US. Patients were required to have chronic back pain for ≥3 months beginning at <45 years of age, no prior SpA diagnosis, and ≥1 of the following 3 SpA features: HLA–B27 positivity, current inflammatory back pain, and magnetic resonance imaging (MRI) or radiographic evidence of sacroiliitis. Medical history and physical examination findings, pelvic radiographs, MRIs of sacroiliac joints, C‐reactive protein (CRP) level, and HLA–B27 status were obtained. Investigators were asked if a clinical diagnosis of axial SpA could be made based on the results. Data were also analyzed separately to determine if patients fulfilled the Assessment of SpondyloArthritis international Society (ASAS) criteria for axial SpA and/or modified New York criteria for ankylosing spondylitis (AS). RESULTS: A total of 751 patients were enrolled (46% were existing patients in rheumatology practices, 40% were new referrals, and 14% were self referred). Among patients with available data, 319 of 697 (46%) were diagnosed as having axial SpA by the investigator, and 348 of 744 (47%) fulfilled the ASAS criteria, of whom 238 were classified as having nonradiographic axial SpA and 108 as having AS; 2 had missing data. Using investigator's clinical diagnosis as the gold standard, the specificity and sensitivity of the ASAS criteria were 79% and 81%, respectively. CONCLUSION: Our findings indicate that among patients with chronic back pain for ≥3 months beginning at ages younger than 45 years, the presence of ≥1 of 3 SpA features is an effective way to identify those with possible axial SpA. John Wiley and Sons Inc. 2016-06-24 2016-07 /pmc/articles/PMC5094500/ /pubmed/26816002 http://dx.doi.org/10.1002/art.39612 Text en © 2016 The Authors. Arthritis & Rheumatology published by Wiley Periodicals, Inc. on behalf of the American College of Rheumatology. This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial (http://creativecommons.org/licenses/by-nc/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
spellingShingle Spondyloarthritis
Deodhar, Atul
Mease, Philip J.
Reveille, John D.
Curtis, Jeffrey R.
Chen, Su
Malhotra, Kailash
Pangan, Aileen L.
Frequency of Axial Spondyloarthritis Diagnosis Among Patients Seen by US Rheumatologists for Evaluation of Chronic Back Pain
title Frequency of Axial Spondyloarthritis Diagnosis Among Patients Seen by US Rheumatologists for Evaluation of Chronic Back Pain
title_full Frequency of Axial Spondyloarthritis Diagnosis Among Patients Seen by US Rheumatologists for Evaluation of Chronic Back Pain
title_fullStr Frequency of Axial Spondyloarthritis Diagnosis Among Patients Seen by US Rheumatologists for Evaluation of Chronic Back Pain
title_full_unstemmed Frequency of Axial Spondyloarthritis Diagnosis Among Patients Seen by US Rheumatologists for Evaluation of Chronic Back Pain
title_short Frequency of Axial Spondyloarthritis Diagnosis Among Patients Seen by US Rheumatologists for Evaluation of Chronic Back Pain
title_sort frequency of axial spondyloarthritis diagnosis among patients seen by us rheumatologists for evaluation of chronic back pain
topic Spondyloarthritis
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5094500/
https://www.ncbi.nlm.nih.gov/pubmed/26816002
http://dx.doi.org/10.1002/art.39612
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