{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,24]],"date-time":"2026-10-24T23:40:57Z","timestamp":1792885257500,"version":"4.5.0"},"reference-count":10,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2012,5,25]],"date-time":"2012-05-25T00:00:00Z","timestamp":1337904000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Arthritis Care &amp;amp; Research"],"published-print":{"date-parts":[[2012,6]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>The US national prevalence of spondylarthritis (SpA) was estimated for 2 published sets of classification criteria: the Amor criteria and the European Spondylarthropathy Study Group (ESSG) criteria. These 2 SpA criteria sets have been the most widely utilized in previous population\u2010based studies of SpA.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>The US SpA prevalence estimates were based on a representative sample of 5,013 US adults ages 20\u201369 years who were examined in the US National Health and Nutrition Examination Survey (NHANES) 2009\u20132010.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>The overall age\u2010adjusted prevalence of definite and probable SpA by the Amor criteria was 0.9% (95% confidence interval [95% CI] 0.7\u20131.1%), corresponding to an estimated 1.7 million persons (95% CI 1.4\u20132.1 million persons). The age\u2010adjusted prevalence of SpA by the ESSG criteria was 1.4% (95% CI 1.0\u20131.9%), corresponding to an estimated 2.7 million persons (95% CI 1.9\u20133.7 million persons). There were no statistically significant sex differences in SpA prevalence. The SpA prevalence among non\u2010Hispanic white persons was 1.0% (95% CI 0.7\u20131.5%) by the Amor criteria and 1.5% (95% CI 1.0\u20132.3%) by the ESSG criteria. SpA prevalence could not be reliably estimated in other race\/ethnicity subgroups due to sample size imitations.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>The SpA prevalence estimates are in the range of SpA prevalence estimates reported elsewhere in population\u2010based surveys and it is likely that SpA may affect up to 1% of US adults, a prevalence similar to that reported for rheumatoid arthritis. The current US SpA prevalence estimates may be lower than the true value because the NHANES 2009\u20132010 data collection did not capture a complete set of the elements specified in the 2 SpA criteria sets.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/acr.21621","type":"journal-article","created":{"date-parts":[[2012,1,24]],"date-time":"2012-01-24T16:09:43Z","timestamp":1327421383000},"page":"905-910","source":"Crossref","is-referenced-by-count":218,"title":["Prevalence of axial spondylarthritis in the United States: Estimates from a cross\u2010sectional survey"],"prefix":"10.1002","volume":"64","author":[{"given":"John D.","family":"Reveille","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"James P.","family":"Witter","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael H.","family":"Weisman","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2012,5,25]]},"reference":[{"key":"e_1_2_7_2_2","doi-asserted-by":"publisher","DOI":"10.1002\/art.23177"},{"key":"e_1_2_7_3_2","first-page":"85","article-title":"Criteria of the classification of spondylarthropathies","volume":"57","author":"Amor B","year":"1990","journal-title":"Rev Rhum Mal Osteoartic"},{"key":"e_1_2_7_4_2","doi-asserted-by":"publisher","DOI":"10.1002\/art.1780341003"},{"key":"e_1_2_7_5_2","doi-asserted-by":"publisher","DOI":"10.1136\/ard.2008.104018"},{"key":"e_1_2_7_6_2","doi-asserted-by":"publisher","DOI":"10.1007\/s11926-008-0060-3"},{"key":"e_1_2_7_7_2","unstructured":"National Health and Nutrition Examination Survey 2009\u20102010. URL:http:\/\/www.cdc.gov\/nchs\/nhanes\/nhanes2009\u20132010\/nhanes09_10.htm."},{"key":"e_1_2_7_8_2","doi-asserted-by":"publisher","DOI":"10.1097\/MAJ.0b013e31820f8c83"},{"key":"e_1_2_7_9_2","unstructured":"National Health and Nutrition Examination Survey 2009\u20102010. Inflammatory arthritis questionnaire. URL:http:\/\/www.cdc.gov\/nchs\/data\/nhanes\/nhanes_09_10\/arq_f.pdf."},{"key":"e_1_2_7_10_2","unstructured":"National Health and Nutrition Examination Survey 2009\u20102010. Sample person questionnaire pain diagram hand cards ARQ1 and ARQ4. URL:http:\/\/www.cdc.gov\/nchs\/data\/nhanes\/nhanes_09_10\/sp_handcards_0910.pdf."},{"key":"e_1_2_7_11_2","unstructured":"National Center for Health Statistics (NCHS). Analytic and reporting guidelines: the Third National Health and Nutrition Examination Survey NHANES III (1988\u20101994). Appendix B: joint policy on variance estimation and statistical reporting. Standards on NHANES III and CSFII reports: HNIS\/ NCHS Analytic Working Group recommendations September 23 1993. URL:http:\/\/www.cdc.gov\/nchs\/data\/nhanes\/nhanes3\/nh3gui.pdf."}],"container-title":["Arthritis Care &amp; Research"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Facr.21621","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/acrjournals.onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/acr.21621","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,2]],"date-time":"2025-10-02T15:19:55Z","timestamp":1759418395000},"score":1,"resource":{"primary":{"URL":"https:\/\/acrjournals.onlinelibrary.wiley.com\/doi\/10.1002\/acr.21621"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2012,5,25]]},"references-count":10,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2012,6]]}},"alternative-id":["10.1002\/acr.21621"],"URL":"https:\/\/doi.org\/10.1002\/acr.21621","archive":["Portico"],"relation":{},"ISSN":["2151-464X","2151-4658"],"issn-type":[{"value":"2151-464X","type":"print"},{"value":"2151-4658","type":"electronic"}],"subject":[],"published":{"date-parts":[[2012,5,25]]}}}