{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,24]],"date-time":"2026-09-24T07:58:56Z","timestamp":1790236736887,"version":"4.1.0"},"reference-count":31,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2026,8,6]],"date-time":"2026-08-06T00:00:00Z","timestamp":1785974400000},"content-version":"vor","delay-in-days":5,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,8,1]],"date-time":"2026-08-01T00:00:00Z","timestamp":1785542400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/100009389","name":"Stiftelsen Promobilia","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100009389","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Clinical Respiratory J"],"published-print":{"date-parts":[[2026,8]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>The Nijmegen Questionnaire (NQ) is used to identify Dysfunctional Breathing (DB) in individuals with asthma. However, it has not been validated for use in children and adolescents.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>This study aimed to validate a Swedish NQ for this population.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>\n                      Participants aged 10\u201317\u2009years with asthma were included (\n                      <jats:italic>n<\/jats:italic>\n                      \u2009=\u2009124). In Cohort I (\n                      <jats:italic>n<\/jats:italic>\n                      \u2009=\u200922), audiotaped semi\u2010structured interviews were conducted to adapt and refine the questionnaire analyzed by qualitative content analysis, resulting in NQ version 1. Forty\u2010eight participants (11 from Cohort I, 37 new) then completed version 1 to assess internal redundancy, consistency (Spearman's Rho, Cronbach's alpha) and item clarity, leading to version 2. Cohort II (\n                      <jats:italic>n<\/jats:italic>\n                      \u2009=\u200960 new) completed NQ version 2 alongside the Paediatric Asthma Quality of Life Questionnaire (PAQLQ) and Childhood\/Adult Asthma Control Test (cACT\/ACT) to assess construct validity. Cohort III (\n                      <jats:italic>n<\/jats:italic>\n                      \u2009=\u200954, 48 from Cohort II, 6 new) completed NQ version 2 again after 2\u2009weeks for test\u2013retest reliability.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Content analysis prompted revisions for clarity and relevance. Internal redundancy ranged from r\n                      <jats:sub>s<\/jats:sub>\n                      \u2009=\u20090.00\u20130.69 and internal consistency was 0.85 (Cronbach's alpha). The NQ correlated moderately with cACT\/ACT (r\n                      <jats:sub>s<\/jats:sub>\n                      \u2009=\u2009\u22120.54) and PAQLQ subscales Symptoms, Activity limitation and Emotional function, r\n                      <jats:sub>s<\/jats:sub>\n                      \u22120.52, \u22120.48, \u22120.39 (CI 0.32;0.70, 0.24;0.66, 0.14;0.60) respectively. Test\u2013retest reliability was 0.86 (Kw) (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.0001).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>The Swedish Paediatric NQ seems to be a valid and reliable tool for identifying DB in children and adolescents with asthma.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/crj.70221","type":"journal-article","created":{"date-parts":[[2026,8,7]],"date-time":"2026-08-07T05:11:47Z","timestamp":1786079507000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Validation of the Paediatric Nijmegen Questionnaire in Sweden: A Self\u2010Screening Tool for Dysfunctional Breathing"],"prefix":"10.1111","volume":"20","author":[{"ORCID":"https:\/\/orcid.org\/0009-0000-0564-7119","authenticated-orcid":false,"given":"Eleni","family":"Theofanidou\u2010Axelsson","sequence":"first","affiliation":[{"name":"Department of Medicine Solna, Division of Rheumatology Karolinska Institute  Stockholm Sweden"},{"name":"Women's Health and Allied Health Professionals Theme, Medical Unit Allied health professionals Karolinska University Hospital  Stockholm Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6731-8468","authenticated-orcid":false,"given":"Malin","family":"Nygren\u2010Bonnier","sequence":"additional","affiliation":[{"name":"Women's Health and Allied Health Professionals Theme, Medical Unit Allied health professionals Karolinska University Hospital  Stockholm Sweden"},{"name":"Department of Neurobiology, Care Sciences and Society Karolinska Institute  Stockholm 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Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3109-6207","authenticated-orcid":false,"given":"Helene","family":"Alexanderson","sequence":"additional","affiliation":[{"name":"Department of Medicine Solna, Division of Rheumatology Karolinska Institute  Stockholm Sweden"},{"name":"Women's Health and Allied Health Professionals Theme, Medical Unit Allied health professionals Karolinska University Hospital  Stockholm Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,8,6]]},"reference":[{"key":"e_1_2_11_2_1","unstructured":"NHS England \u201cChildhood Asthma 2018 \u201d accessed May 15 2023 (2018) 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