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This study included 140 patients (mean age: 51.38 \u00b1 12.23\u00a0years) with ADLR. Pre- and post-treatment, participants completed the ODI-TR and the Visual Analogue Scale (VAS), which assessed pain at rest (VASr), at night (VASn), and during activity (VASa). Post-treatment, the Global Perceived Effect Scale (GPE) was utilized to quantify patient-reported improvement or deterioration. Responsiveness was evaluated using both distribution- and anchor-based methods. The distribution-based approach involved calculating the standard error of measurement (SEM) using the formula SEM = SDx\u221a(1-R), followed by the determination of the minimum detectable change at a 95% confidence level (MDC95), calculated as MDC = SEMx1.96x\u221a2. The anchor-based method employed receiver-operating characteristic (ROC) curve analysis. The ODI-TR demonstrated good responsiveness, as indicated by an effect size of 1.29 and a standardized response mean of 1.03. The measurement error was quantified by an SEM of 7.08, and the MDC was calculated as 19.62. The ROC analysis showed a moderate ability to distinguish between patient outcomes, with an area under the curve of 0.71. An ODI-TR score of 9.50 was found to be the most effective cut-off, providing high sensitivity (86.1%) and specificity (76.0%). The ODI-TR is responsive in determining the changes in ADLR patients. The MDC and established cut-off point provide clinicians with valuable metrics for discerning clinically significant improvements or deteriorations.<\/jats:p>","DOI":"10.1177\/00315125251407383","type":"journal-article","created":{"date-parts":[[2025,12,4]],"date-time":"2025-12-04T18:08:57Z","timestamp":1764871737000},"page":"1225-1242","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":1,"title":["Responsiveness and Minimal Clinically Important Difference of the Turkish Version of the Oswestry Disability Index in Patients With Acute Discogenic Lumbar Radiculopathy"],"prefix":"10.1177","volume":"133","author":[{"given":"Seyda Toprak","family":"Celenay","sequence":"first","affiliation":[{"name":"Ankara Yildirim Beyazit University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4476-3785","authenticated-orcid":false,"given":"Erhan","family":"Secer","sequence":"additional","affiliation":[{"name":"Manisa Celal Bayar University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Huseyin","family":"Biceroglu","sequence":"additional","affiliation":[{"name":"Ege University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Derya","family":"Ozer Kaya","sequence":"additional","affiliation":[{"name":"Izmir Katip Celebi University"},{"name":"Izmir Katip Celebi University"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2025,12,4]]},"reference":[{"issue":"1","key":"e_1_3_4_2_1","first-page":"6437523","article-title":"Effectiveness of low\u2010level laser therapy in patients with discogenic lumbar radiculopathy: A double\u2010blind randomized controlled Trial","volume":"2022","author":"Ahmed I.","year":"2022","unstructured":"Ahmed I., Bandpei M. A. M., Gilani S. A., Ahmad A., Zaidi F. (2022). Effectiveness of low\u2010level laser therapy in patients with discogenic lumbar radiculopathy: A double\u2010blind randomized controlled Trial. 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