{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,28]],"date-time":"2026-10-28T07:38:14Z","timestamp":1793173094003,"version":"4.5.0"},"reference-count":0,"publisher":"Cambridge University Press (CUP)","issue":"5","license":[{"start":{"date-parts":[[1999,9,1]],"date-time":"1999-09-01T00:00:00Z","timestamp":936144000000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Psychol. Med."],"published-print":{"date-parts":[[1999,9]]},"abstract":"<jats:p><jats:bold>Background.<\/jats:bold> An earlier small-scale study of children with autism revealed that 8\u00b71% of such \npatients were co-morbid for Gilles de la Tourette syndrome (GTS). The present study is a large scale \ntest of whether this result replicates.<\/jats:p><jats:p><jats:bold>Method.<\/jats:bold> Four hundred and forty-seven pupils from nine schools for children and adolescents with \nautism were screened for the presence of motor and vocal tics.<\/jats:p><jats:p><jats:bold>Results.<\/jats:bold> Subsequent family interviews confirmed the co-morbid diagnosis of definite GTS in 19 \nchildren, giving a prevalence rate of 4\u00b73%. A further 10 children were diagnosed with probable GTS \n(2\u00b72%).<\/jats:p><jats:p><jats:bold>Conclusions.<\/jats:bold> These results indicate that the rate of GTS in autism exceeds that expected by chance, \nand the combined rate (6\u00b75%) is similar to the rates found in the smaller-scale study. Methodological \nconsiderations and alternative explanations for an increased prevalence are discussed.<\/jats:p>","DOI":"10.1017\/s003329179900896x","type":"journal-article","created":{"date-parts":[[2002,7,27]],"date-time":"2002-07-27T13:36:08Z","timestamp":1027776968000},"page":"1151-1159","source":"Crossref","is-referenced-by-count":146,"title":["The prevalence of Gilles de la Tourette syndrome in \nchildren and adolescents with autism: a large scale study"],"prefix":"10.1017","volume":"29","author":[{"given":"S.","family":"BARON-COHEN","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"V. L.","family":"SCAHILL","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J.","family":"IZAGUIRRE","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"H.","family":"HORNSEY","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"M. M.","family":"ROBERTSON","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"56","published-online":{"date-parts":[[1999,9,1]]},"container-title":["Psychological Medicine"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.cambridge.org\/core\/services\/aop-cambridge-core\/content\/view\/S003329179900896X","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2019,4,5]],"date-time":"2019-04-05T21:27:56Z","timestamp":1554499676000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.cambridge.org\/core\/product\/identifier\/S003329179900896X\/type\/journal_article"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1999,9]]},"references-count":0,"journal-issue":{"issue":"5","published-print":{"date-parts":[[1999,9]]}},"alternative-id":["S003329179900896X"],"URL":"https:\/\/doi.org\/10.1017\/s003329179900896x","relation":{},"ISSN":["0033-2917","1469-8978"],"issn-type":[{"value":"0033-2917","type":"print"},{"value":"1469-8978","type":"electronic"}],"subject":[],"published":{"date-parts":[[1999,9]]}}}