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A single back translation was performed, and the Swedish version was finalized. The Swedish EOSQ-24 was made available online for clinically active spinal surgeons to use during outpatient visits, where it was distributed to caregivers of early-onset scoliosis (EOS) patients aged 0\u201315\u00a0years. Internal consistency was assessed using Cronbach\u2019s alpha, item-total correlation, and analysis of floor and ceiling effects. Convergent validity was examined using the EuroQol-5D 3 level (EQ-5D) and the Scoliosis Research Society 22-Item Questionnaire revised (SRS-22r).<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Results<\/jats:title>\n            <jats:p>Responses from 140 caregivers were collected. Ceiling effects ranged from 21 to 74%, with no floor effects\u2009&gt;\u200915%. Internal consistency was excellent (Cronbach\u2019s alpha\u2009=\u20090.9), except for two domains: \u201cGeneral Health\u201d (0.6) and \u201cPulmonary Function\u201d (0.4). The item\u2013total correlation was poor for \u201cPulmonary Function\u201d. EOSQ-24 domains showed significant convergent validity with SRS-22r (Spearman\u2019s rho 0.5 to 0.8) and the EQ-5D (Spearman\u2019s rho -0.6 to -0.8). Stepwise regression showed lower scores for patients with neuromuscular scoliosis, indicating sensitivity for scoliosis etiology.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Conclusion<\/jats:title>\n            <jats:p>The Swedish EOSQ-24 is a valid, disease-specific questionnaire with excellent internal consistency suitable for use in a clinical setting. Minor inconsistencies are not unique for the Swedish translation.<\/jats:p>\n            <jats:p>\n              <jats:bold>Level of evidence:<\/jats:bold> II.<\/jats:p>\n          <\/jats:sec>","DOI":"10.1007\/s43390-025-01064-5","type":"journal-article","created":{"date-parts":[[2025,3,7]],"date-time":"2025-03-07T09:35:16Z","timestamp":1741340116000},"page":"1253-1261","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Translation and validation of the Swedish version of the early-onset scoliosis 24-item questionnaire"],"prefix":"10.1007","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0484-1723","authenticated-orcid":false,"given":"I.","family":"Green-Petersen","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"T.","family":"Cheng","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"S.","family":"Blixt","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"P.","family":"Gerdhem","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2025,3,7]]},"reference":[{"key":"1064_CR1","doi-asserted-by":"publisher","DOI":"10.1542\/peds.2015-0709","author":"S Yang","year":"2016","unstructured":"Yang S, Andras LM, Redding GJ, Skaggs DL (2016) Early-onset scoliosis: a review of history, current treatment, and future directions. 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