{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,12]],"date-time":"2026-11-12T16:10:12Z","timestamp":1794499812728,"version":"4.9.1"},"reference-count":33,"publisher":"The Journal of Rheumatology","issue":"10","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Rheumatol"],"published-print":{"date-parts":[[2023,10]]},"abstract":"<jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>Prospective comparative effectiveness research (CER) in chronic nonbacterial osteomyelitis (CNO) is lacking. Our objectives were to (1) determine the use and safety of each consensus treatment plan (CTP) regimen for CNO, (2) assess the feasibility of using the Chronic Nonbacterial Osteomyelitis International Registry (CHOIR) data for CER, and (3) develop and validate a CNO clinical disease activity score (CDAS) using CHOIR.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Consenting children or young adults with CNO were enrolled into CHOIR. Demographic, clinical, and imaging data were prospectively collected. The CNO CDAS was developed through a Delphi survey and nominal group technique. External validation surveys were administered to CHOIR participants.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      One hundred forty (78.2%) CHOIR participants enrolled between August 2018 and September 2020 received at least 1 CTP regimen. Baseline characteristics from different CTP groups were well matched. Patient pain, patient global assessment, and clinical CNO lesion count were key variables included in the CNO CDAS. The CDAS showed a strong correlation with patient\/parent report of difficulty using a limb, back, or jaw and patient\/parent report of disease severity, but a weak correlation with patient\/parent report of fatigue, sadness, and worry. The change in CDAS was significant in patients reporting disease worsening or improvement (\n                      <jats:italic>P<\/jats:italic>\n                      &lt; 0.001). The CDAS significantly decreased after initiating second-line treatments from median 12.0 (IQR 8.0-15.5) to 5.0 (IQR 3.0-12.0;\n                      <jats:italic>P<\/jats:italic>\n                      = 0.002). Although second-line treatments were well tolerated, psoriasis was the most common adverse event.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>The CNO CDAS was developed and validated for disease monitoring and assessment of treatment effectiveness. CHOIR provided a comprehensive framework for future CER.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.3899\/jrheum.2022-1323","type":"journal-article","created":{"date-parts":[[2023,7,1]],"date-time":"2023-07-01T08:20:14Z","timestamp":1688199614000},"page":"1333-1340","source":"Crossref","is-referenced-by-count":26,"title":["Feasibility of Conducting Comparative Effectiveness Research and Validation of a Clinical Disease Activity Score for Chronic Nonbacterial Osteomyelitis"],"prefix":"10.3899","volume":"50","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6394-6843","authenticated-orcid":false,"given":"Eveline 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