{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,24]],"date-time":"2026-10-24T02:13:28Z","timestamp":1792808008429,"version":"4.5.0"},"reference-count":47,"publisher":"SAGE Publications","issue":"1","license":[{"start":{"date-parts":[[2023,3,1]],"date-time":"2023-03-01T00:00:00Z","timestamp":1677628800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2023,3,1]],"date-time":"2023-03-01T00:00:00Z","timestamp":1677628800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Neurotrauma Reports"],"published-print":{"date-parts":[[2023,3]]},"abstract":"<jats:p>\n                    The General Anxiety Disorder 7-Item (GAD-7) scale is commonly used in primary care as a self-report measure of general anxiety symptoms with adult populations. There is little psychometric research on this measure with adolescent populations, particularly those with persistent post-concussive symptoms (PPCS). This study examined the psychometrics properties of the GAD-7 among youth with PPCS. We used baseline data from a randomized controlled trial of collaborative care for treatment of PPCS among 200 sports-injured adolescents 11\u201318 years of age (M\n                    <jats:sub>age<\/jats:sub>\n                    \u2009=\u200914.7 years, standard deviation\u2009=\u20091.7). Eligible adolescents had three or more PPCS that lasted for \u22651 month and spoke English. Adolescents reported on their anxious (GAD-7 and Revised Child Anxiety and Depression Scale\u2013Short Version [anxiety subscale]; RCADS) and depressive (Patient Health Questionnaire-9; PHQ-9) symptoms. Parents used the RCADS to report on their adolescents' anxious symptoms. The GAD-7 had good internal validity (Cronbach's alpha\u2009=\u20090.87), and significant (\n                    <jats:italic toggle=\"yes\">p<\/jats:italic>\n                    \u2009&lt;\u20090.001) correlations were detected between the GAD-7 and youth and parent report of anxiety on RCADS (\n                    <jats:italic toggle=\"yes\">r<\/jats:italic>\n                    \u2009=\u20090.73 and\n                    <jats:italic toggle=\"yes\">r<\/jats:italic>\n                    \u2009=\u20090.29) and PHQ-9 (\n                    <jats:italic toggle=\"yes\">r<\/jats:italic>\n                    \u2009=\u20090.77) scores. Confirmatory factor analysis suggested a one-factor solution. These results suggest that the GAD-7 is a valid measure of anxiety with good psychometric properties for youth experiencing PPCS.\n                    <jats:ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" ext-link-type=\"uri\" xlink:href=\"http:\/\/ClinicalTrials.gov\">ClinicalTrials.gov<\/jats:ext-link>\n                    identifier: NCT03034720\n                  <\/jats:p>","DOI":"10.1089\/neur.2022.0075","type":"journal-article","created":{"date-parts":[[2023,4,27]],"date-time":"2023-04-27T10:55:56Z","timestamp":1682592956000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":8,"title":["Psychometric Properties and Validation of the General Anxiety Disorder 7-Item Scale Among Adolescents With Persistent Post-Concussive Symptoms"],"prefix":"10.1177","volume":"4","author":[{"given":"Lyscha A.","family":"Marcynyszyn","sequence":"first","affiliation":[{"name":"ICF International, Reston, Virginia, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Carolyn A.","family":"McCarty","sequence":"additional","affiliation":[{"name":"Center for Child Health, Behavior, and Development, Seattle Children's Research Institute, Seattle, Washington, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sara P.D.","family":"Chrisman","sequence":"additional","affiliation":[{"name":"Center for Child Health, Behavior, and Development, Seattle Children's Research Institute, Seattle, Washington, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Douglas F.","family":"Zatzick","sequence":"additional","affiliation":[{"name":"Harborview Medical Center, University of Washington School of Medicine, Department of Epidemiology, School of Public Health, University of Washington, Seattle, Washington, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ashleigh M.","family":"Johnson","sequence":"additional","affiliation":[{"name":"College of Health and Human Services, School of Exercise and Nutritional Sciences, San Diego State University, San Diego, California, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jin","family":"Wang","sequence":"additional","affiliation":[{"name":"Harborview Injury Prevention and Research Center, Department of Pediatrics, Department of Epidemiology, School of Public Health, University of Washington, Seattle, Washington, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Robert J.","family":"Hilt","sequence":"additional","affiliation":[{"name":"Psychiatry and Behavioral Sciences, University of Washington, Seattle Children's Hospital, Department of Epidemiology, School of Public Health, University of Washington, Seattle, Washington, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Frederick P.","family":"Rivara","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, Department of Epidemiology, School of Public 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