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A cross-sectional study was conducted involving adult thalassemia patients and healthy controls matched at a 2:1 ratio by age and sex. LS and FN BMD and TBS were measured using dual-energy X-ray absorptiometry. Univariate and multivariate analyses were performed to identify factors influencing TBS. The study protocol was approved by the institutional ethics committee. Eighty-six thalassemia patients (mean\u2009\u00b1\u2009SD age 32.2\u2009\u00b1\u200911.9 years; 60.5% women) and 172 healthy controls (mean\u2009\u00b1\u2009SD age 33.7\u2009\u00b1\u200910.9 years; 60.5% women) were included. Thalassemia patients had significantly lower BMI, LS Z-score, FN Z-score and TBS than controls (all\n                    <jats:italic>p<\/jats:italic>\n                    \u2009&lt;\u20090.001). Only 24.4% of thalassemia patients had normal TBS (\u2265\u20091.350) compared to 77.9% of controls, with a tenfold higher prevalence of degraded microarchitecture (TBS\u2009&lt;\u20091.200). Although TDT patients exhibited more severe disease features than NTDT patients, TBS was similarly reduced in both groups. In multivariate analysis adjusted for age, sex, BMI, and LS BMD, TDT status remained independently associated with lower TBS (\u03b2 = \u2212 0.047; 95% CI: \u2212 0.083 to \u2212 0.012). No significant correlations were found between TBS and hemoglobin, serum ferritin, lactate dehydrogenase or glucose levels. This study provides new evidence that TBS was significantly impaired in Southeast Asian patients with thalassemia, independent of BMD, with a disproportionate reduction observed particularly in TDT patients.\n                  <\/jats:p>","DOI":"10.1007\/s00223-026-01483-0","type":"journal-article","created":{"date-parts":[[2026,2,9]],"date-time":"2026-02-09T05:33:19Z","timestamp":1770615199000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Disproportionate Decline in Trabecular Bone Score Compared to Bone Mineral Density in Southeast Asian Patients with Thalassemia: A Matched Control Study"],"prefix":"10.1007","volume":"117","author":[{"given":"Chatlert","family":"Pongchaiyakul","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nattiya","family":"Teawtrakul","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daris","family":"Theerakulpisut","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dueanchonnee","family":"Sribenjalak","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6501-6180","authenticated-orcid":false,"given":"Nipith","family":"Charoenngam","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2026,2,9]]},"reference":[{"key":"1483_CR1","doi-asserted-by":"publisher","unstructured":"Tuo Y, Li Y, Li Y, Ma J, Yang X, Wu S, Jin J, He Z (2024) Global, regional, and national burden of thalassemia, 1990\u20132021: a systematic analysis for the global burden of disease study 2021. eClinicalMedicine 72. https:\/\/doi.org\/10.1016\/j.eclinm.2024.102619","DOI":"10.1016\/j.eclinm.2024.102619"},{"issue":"2","key":"1483_CR2","doi-asserted-by":"publisher","first-page":"61","DOI":"10.1097\/GIM.0b013e3181cd68ed","volume":"12","author":"A Cao","year":"2010","unstructured":"Cao A, Galanello R (2010) Beta-thalassemia. 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