{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,13]],"date-time":"2025-05-13T15:31:58Z","timestamp":1747150318132,"version":"3.40.5"},"reference-count":16,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2023,4,14]],"date-time":"2023-04-14T00:00:00Z","timestamp":1681430400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001691","name":"Japan Society for the Promotion of Science","doi-asserted-by":"publisher","award":["19K21801"],"award-info":[{"award-number":["19K21801"]}],"id":[{"id":"10.13039\/501100001691","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Laryngoscope Investig Oto"],"published-print":{"date-parts":[[2023,6]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objectives<\/jats:title><jats:p>To compile the opinions of native Japanese speakers on the conceptual framework, optimal evaluation, and support measures for children with language disorders to devise materials on which a consensus can be formed.<\/jats:p><\/jats:sec><jats:sec><jats:title>Design<\/jats:title><jats:p>A quantitative descriptive study using the Delphi method.<\/jats:p><\/jats:sec><jats:sec><jats:title>Setting<\/jats:title><jats:p>Using the Delphi method, 43 clinicians with at least 15\u2009years of experience working professionally with children's language disorders in Japan were surveyed three times via a web\u2010based questionnaire. Thirty\u2010nine items that were carefully selected by the working group were surveyed, and the agreement level was set to \u226580%.<\/jats:p><\/jats:sec><jats:sec><jats:title>Main Outcome Measures<\/jats:title><jats:p>We investigated the following aspects related to developmental language disorder (DLD) among Japanese children: definition, core symptoms, evaluation of core symptoms, relationship with a second language, relationship with other related disorders, support systems, and information availability.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Overall, 43 qualified panel members were included in this study. Among the 39 items in the questionnaire, a high level of consensus (\u226580%) from the responses of the participants was achieved for five items in Round 1, whereas no consensus (&lt;50%) was achieved for seven items. After revising and integrating the questionnaires into 22 items, we conducted Rounds 2 and 3 and obtained high and medium levels of agreement in 20 items on disease concept, core symptoms, coexisting disorders, and manner of support of DLD in children.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Our results clarify the previously ambiguous image of DLD in Japan. Information\u2010sharing strategies that connect professionals, patients, their families, and community members are required in the future.<\/jats:p><\/jats:sec><jats:sec><jats:title>Level of Evidence<\/jats:title><jats:p>5<\/jats:p><\/jats:sec>","DOI":"10.1002\/lio2.1055","type":"journal-article","created":{"date-parts":[[2023,4,14]],"date-time":"2023-04-14T12:39:36Z","timestamp":1681475976000},"page":"763-774","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Questionnaire survey on the conceptual framework, optimal evaluation, and support measures for children's language disorders in Japan using the Delphi method"],"prefix":"10.1002","volume":"8","author":[{"given":"Kenji","family":"Iwamura","sequence":"first","affiliation":[{"name":"Department of Rehabilitation Kumamoto City Hospital  Kumamoto City Kumamoto Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Motohiro","family":"Isaki","sequence":"additional","affiliation":[{"name":"Division of Speech\u2010Language\u2010Hearing Therapy, Department of Rehabilitation, Faculty of Health Science Kumamoto Health Science University  Kumamoto City Kumamoto Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chizuko","family":"Uchiyama","sequence":"additional","affiliation":[{"name":"Department of Speech, Language and Hearing Therapy Faculty of Health Sciences Mejiro University  Saitama Saitama Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Keiko","family":"Nomura","sequence":"additional","affiliation":[{"name":"Department of Pediatrics Kumamoto University Hospital  Kumamoto City Kumamoto Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ayumi","family":"Tanimoto","sequence":"additional","affiliation":[{"name":"Department of Rehabilitation Tosa Kibounoie Health and Welfare Iryoufukushi Center  Nankoku Kochi Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hajime","family":"Kuroiwa","sequence":"additional","affiliation":[{"name":"Integrated Center for Advanced Medical Technologies, Kochi Medical School Hospital Kochi University  Nankoku Kochi Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Machiko","family":"Kozono","sequence":"additional","affiliation":[{"name":"Division of Speech\u2010Language\u2010Hearing Therapy, Department of Rehabilitation, Faculty of Health Science Kumamoto Health Science University  Kumamoto City Kumamoto Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yoshihiro","family":"Iwashita","sequence":"additional","affiliation":[{"name":"Division of Physical Therapy, Department of Rehabilitation, Faculty of Health Science Kumamoto Health Science University  Kumamoto City Kumamoto Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Junko","family":"Iwamura","sequence":"additional","affiliation":[{"name":"Student Counseling and Academic Support Center Kumamoto Health Science University  Kumamoto City Kumamoto Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9144-3242","authenticated-orcid":false,"given":"Masamitsu","family":"Hyodo","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology\u2010Head and Neck Surgery, Kochi Medical School Kochi University  Nankoku Kochi Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2023,4,14]]},"reference":[{"key":"e_1_2_9_2_1","unstructured":"WalshR IGOTFCSD.A history of terminology: international group on terminology frameworks\u2010communication science and disorders.2006. 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