{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,13]],"date-time":"2026-10-13T15:43:46Z","timestamp":1791906226978,"version":"4.3.4"},"reference-count":14,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2018,9,21]],"date-time":"2018-09-21T00:00:00Z","timestamp":1537488000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/100010399","name":"European Society of Cataract and Refractive Surgeons","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100010399","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Acta Ophthalmologica"],"published-print":{"date-parts":[[2019,3]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>The primary goal was to validate a Danish translated version of the Catquest\u20109<jats:styled-content style=\"fixed-case\">SF<\/jats:styled-content> by Rasch analysis. The secondary goal was to investigate whether preoperative Catquest\u20109<jats:styled-content style=\"fixed-case\">SF<\/jats:styled-content> scores, best\u2010corrected visual acuity, comorbidity, gender, age or corneal astigmatism could predict improvements in subjective outcome.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>In a prospective trial, 250 patients eligible for cataract surgery were included. Patients filled out the translated Catquest\u20109<jats:styled-content style=\"fixed-case\">SF<\/jats:styled-content> questionnaire before surgery and again 3\u00a0months after surgery. Both preoperative and postoperative questionnaires were included in the Rasch analysis. A multiple reverse stepwise regression model was used to investigate the correlation between preoperative measurements and subjective improvement.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The preliminary Rasch analysis showed misfit of items 4 and 6. These items were removed, and the remaining seven items demonstrated a measurement precision of 2.78, a person reliability coefficient of 0.89, ordered response categories, infit of 0.69\u20131.22, outfit of 0.73\u20131.14, observed raw variance explained by measures of 70.4% and an eigenvalue of 1.7. Item 7 showed a mild <jats:styled-content style=\"fixed-case\">DIF<\/jats:styled-content> for gender (0.54 logits), and person mean Rasch score targeting was \u22121.69 logits. Preoperative Catquest score was the only parameter with a significant correlation to a gain in subjective outcome (p\u00a0&lt;\u00a00.001). A preoperative Catquest\u20109<jats:styled-content style=\"fixed-case\">SF<\/jats:styled-content> score of 0.5 carried a 95% likelihood of an increase in subjective outcome.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>The Danish version of the Catquest\u20109<jats:styled-content style=\"fixed-case\">SF<\/jats:styled-content> fit the Rasch model. Only preoperative Catquest\u20109<jats:styled-content style=\"fixed-case\">SF<\/jats:styled-content> score was correlated to subjective improvement, and a cut\u2010off value of 0.5 predicted an improvement in subjective outcome with 95% probability.<\/jats:p><\/jats:sec>","DOI":"10.1111\/aos.13921","type":"journal-article","created":{"date-parts":[[2018,9,22]],"date-time":"2018-09-22T12:41:08Z","timestamp":1537620068000},"page":"173-177","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":16,"title":["Validation of Catquest\u20109<scp>SF<\/scp> in Danish: developing a revised form of the Catquest\u20109<scp>SF<\/scp> \u2013 the Danish Catquest\u20107<scp>SF<\/scp>"],"prefix":"10.1111","volume":"97","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0036-7609","authenticated-orcid":false,"given":"Esben","family":"Nielsen","sequence":"first","affiliation":[{"name":"Department of Ophthalmology Aalborg University Hospital Aalborg 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