{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,17]],"date-time":"2026-10-17T01:39:12Z","timestamp":1792201152342,"version":"4.4.0"},"reference-count":44,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2020,5,20]],"date-time":"2020-05-20T00:00:00Z","timestamp":1589932800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001659","name":"Deutsche Forschungsgemeinschaft","doi-asserted-by":"publisher","award":["420503242"],"award-info":[{"award-number":["420503242"]}],"id":[{"id":"10.13039\/501100001659","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["acamh.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Child Psychology Psychiatry"],"published-print":{"date-parts":[[2021,4]]},"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Children younger than 7\u00a0years can develop mental disorders that might manifest differently than in older children or adolescents. However, little is known about the prevalence of mental disorders at this early age.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>We systematically searched the literature in the databases Web of Science, PsycINFO, PSYNDEX, MEDLINE, and Embase to identify epidemiological studies of community samples published between 2006 and 2020. A series of meta\u2010analyses was conducted to estimate the pooled worldwide prevalence of mental disorders in general, specific mental disorders, and comorbidity in young children.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      A total of ten epidemiological studies reporting data on\n                      <jats:italic>N<\/jats:italic>\n                      \u00a0=\u00a018,282 children (12\u201383\u00a0months old) from eight countries met the inclusion criteria. The pooled prevalence of mental disorders in general was 20.1%, 95% CI [15.7, 25.4]. Most common disorders were oppositional defiant disorder (4.9%, 95% CI [2.5, 9.5]) and attention\u2010deficit hyperactivity disorder (4.3%, 95% CI [2.5, 7.2]). The prevalence of any anxiety disorders was 8.5%, 95% CI [5.2, 13.5], and of any depressive disorders was 1.1%, 95% CI [0.8, 1.6]. Comorbidity was estimated at 6.4%, 95% CI [1.3, 54.0].\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>The literature search reveals that the epidemiology of mental disorders in children younger than 7\u00a0years is still a neglected area of research. The findings also indicate that there are a significant number of young children suffering from mental disorders who need appropriate age\u2010adapted treatment.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/jcpp.13261","type":"journal-article","created":{"date-parts":[[2020,5,20]],"date-time":"2020-05-20T16:01:21Z","timestamp":1589990481000},"page":"372-381","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":221,"title":["Research review: A meta\u2010analysis of the international prevalence and comorbidity of mental disorders in children between 1 and 7 years"],"prefix":"10.1111","volume":"62","author":[{"given":"Mira","family":"Vasileva","sequence":"first","affiliation":[{"name":"Center for Clinical Psychology and Rehabilitation University of Bremen Bremen Germany"},{"name":"Child and Community Wellbeing Unit Melbourne School of Population and Global Health University of Melbourne Melbourne Vic. 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