{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,3]],"date-time":"2026-05-03T04:05:34Z","timestamp":1777781134194,"version":"3.51.4"},"reference-count":32,"publisher":"SAGE Publications","issue":"8","license":[{"start":{"date-parts":[[2017,2,1]],"date-time":"2017-02-01T00:00:00Z","timestamp":1485907200000},"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":["J Atten Disord"],"published-print":{"date-parts":[[2020,6]]},"abstract":"<jats:p>Objective: The objective of this study was to conduct latent class analysis (LCA) of ADHD symptoms to characterize the underlying structure of ADHD. Method: Participants were recruited from September 2012 to January 2015 from the Department of Psychiatry of Asan Medical Center, Seoul, Korea. Diagnoses of ADHD and comorbid psychiatric disorders were confirmed with the Kiddie\u2013Schedule for Affective Disorders and Schizophrenia\u2013Present and Lifetime Version (K-SADS-PL). We performed LCA of ADHD symptoms in those who had ( n = 141, age = 8.1 \u00b1 2.3 years, 106 boys) and did not have ( n = 82, age = 9.1 \u00b1 2.5 years, 40 boys) ADHD. Results: A three-class solution was found to be the best model, revealing classes of children with mostly combined and hyperactive\/impulsive subtypes of ADHD (Class 1), non-ADHD (Class 2), and inattentive subtype of ADHD (Class 3). Conclusion: The three-class solution with LCA supports a two-factor two-class structure of ADHD symptoms.<\/jats:p>","DOI":"10.1177\/1087054717691828","type":"journal-article","created":{"date-parts":[[2017,2,21]],"date-time":"2017-02-21T06:27:51Z","timestamp":1487658471000},"page":"1117-1124","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Latent Class Analysis of ADHD Symptoms in Korean Children and Adolescents"],"prefix":"10.1177","volume":"24","author":[{"given":"Kee Jeong","family":"Park","sequence":"first","affiliation":[{"name":"Department of Psychiatry, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hyun-Jeong","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Psychiatry, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hyo-Won","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Psychiatry, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2017,2,1]]},"reference":[{"key":"bibr1-1087054717691828","doi-asserted-by":"publisher","DOI":"10.1375\/183242706778025008"},{"key":"bibr2-1087054717691828","volume-title":"Diagnostic and Statistical Manual for Mental Disorder II (DSM-II)","author":"American Psychiatric Association","year":"1968"},{"key":"bibr3-1087054717691828","volume-title":"Diagnostic and Statistical Manual for Mental Disorder III (DSM-III)","author":"American Psychiatric Association","year":"1980"},{"key":"bibr4-1087054717691828","volume-title":"Diagnostic and statistical manual of mental disorders","author":"American Psychiatric Association","year":"1994","edition":"4"},{"key":"bibr5-1087054717691828","volume-title":"Diagnostic and statistical manual of mental disorders","author":"American Psychiatric Association","year":"2000","edition":"4"},{"key":"bibr6-1087054717691828","doi-asserted-by":"publisher","DOI":"10.1176\/appi.books.9780890425596"},{"key":"bibr7-1087054717691828","doi-asserted-by":"publisher","DOI":"10.1016\/j.jaac.2014.03.007"},{"key":"bibr8-1087054717691828","doi-asserted-by":"publisher","DOI":"10.1093\/clipsy.8.4.489"},{"key":"bibr9-1087054717691828","volume-title":"Attention deficit hyperactivity disorder: A handbook for diagnosis and treatment","author":"Barkley R. A.","year":"2006","edition":"3"},{"key":"bibr10-1087054717691828","first-page":"202","volume-title":"Attention deficit hyperactivity disorder: A handbook for diagnosis and treatment","author":"Barkley R. A.","year":"2006","edition":"3"},{"key":"bibr11-1087054717691828","doi-asserted-by":"publisher","DOI":"10.1007\/s00787-004-0401-3"},{"key":"bibr12-1087054717691828","doi-asserted-by":"publisher","DOI":"10.1023\/A:1012281226028"},{"key":"bibr13-1087054717691828","doi-asserted-by":"publisher","DOI":"10.1007\/s00787-006-0572-1"},{"key":"bibr14-1087054717691828","doi-asserted-by":"publisher","DOI":"10.2217\/npy.13.59"},{"key":"bibr15-1087054717691828","doi-asserted-by":"publisher","DOI":"10.1097\/00004583-199808000-00015"},{"key":"bibr16-1087054717691828","doi-asserted-by":"publisher","DOI":"10.3349\/ymj.2004.45.1.81"},{"key":"bibr17-1087054717691828","volume-title":"Korean-Wechsler intelligence scale for children IV","author":"Kwak K. J.","year":"2011","edition":"4"},{"key":"bibr18-1087054717691828","doi-asserted-by":"publisher","DOI":"10.1001\/archpsyc.62.8.896"},{"key":"bibr19-1087054717691828","doi-asserted-by":"publisher","DOI":"10.1097\/00004583-198805000-00011"},{"key":"bibr20-1087054717691828","doi-asserted-by":"publisher","DOI":"10.18637\/jss.v042.i10"},{"key":"bibr21-1087054717691828","doi-asserted-by":"publisher","DOI":"10.1093\/clipsy.8.4.463"},{"key":"bibr22-1087054717691828","doi-asserted-by":"publisher","DOI":"10.1080\/15374416.2010.517171"},{"key":"bibr23-1087054717691828","doi-asserted-by":"publisher","DOI":"10.1177\/1087054716658125"},{"key":"bibr24-1087054717691828","doi-asserted-by":"publisher","DOI":"10.1037\/pas0000121"},{"key":"bibr25-1087054717691828","doi-asserted-by":"publisher","DOI":"10.1111\/jcpp.12381"},{"key":"bibr26-1087054717691828","doi-asserted-by":"publisher","DOI":"10.1016\/j.chc.2007.11.007"},{"key":"bibr27-1087054717691828","first-page":"91","volume":"11","author":"Shin M.","year":"2000","journal-title":"Journal of the Korean Academy of Child and Adolescent Psychiatry"},{"key":"bibr28-1087054717691828","volume-title":"Lewis\u2019s child and adolescent psychiatry: Comprehensive textbook","author":"Spetie L.","year":"2007","edition":"4"},{"key":"bibr29-1087054717691828","doi-asserted-by":"publisher","DOI":"10.1111\/j.1469-7610.2006.01628.x"},{"key":"bibr30-1087054717691828","doi-asserted-by":"publisher","DOI":"10.1097\/chi.0b013e31815a6aca"},{"key":"bibr31-1087054717691828","doi-asserted-by":"publisher","DOI":"10.1097\/01.chi.0000166173.72815.83"},{"key":"bibr32-1087054717691828","doi-asserted-by":"publisher","DOI":"10.1177\/00222194030360040801"}],"container-title":["Journal of Attention Disorders"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/1087054717691828","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.1177\/1087054717691828","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/1087054717691828","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,29]],"date-time":"2026-04-29T19:28:16Z","timestamp":1777490896000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/1087054717691828"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2017,2,1]]},"references-count":32,"journal-issue":{"issue":"8","published-print":{"date-parts":[[2020,6]]}},"alternative-id":["10.1177\/1087054717691828"],"URL":"https:\/\/doi.org\/10.1177\/1087054717691828","relation":{},"ISSN":["1087-0547","1557-1246"],"issn-type":[{"value":"1087-0547","type":"print"},{"value":"1557-1246","type":"electronic"}],"subject":[],"published":{"date-parts":[[2017,2,1]]}}}