The prevalence of autistic spectrum disorders in adolescents with a history of specific language impairment (SLI)

摘要: Background: Traditionally, autism and specific language impairment (SLI) have been regarded as distinct disorders but, more recently, evidence has put forward for a closer link between them: common set of problems, in particular receptive difficulties the existence intermediate cases including pragmatic impairment. The present study aimed to examine prevalence spectrum large sample adolescents with history SLI. Method: presence was examined seventy-six 14-year-olds confirmed A variety instruments were employed, Autism Diagnostic Interview-Revised (ADI-R), Observation Schedule (ADOS) Family History Interview (FHI). Results: young people SLI found be 3.9%, about 10 times what would expected from general population. In addition, much larger number showed only some symptoms or them mild form. Conclusions: Young an increased risk autism. magnitude this is considerable. proportion (a quarter individuals) behaviours consistent disorders. Keywords: Specific (SLI), autism, prevalence, diagnosis. Abbreviations: ADI-R: Interview-Revised; ADOS: Schedule; CCC: Children’ Communication Checklist; FHI: Interview; PDDNOS: pervasive developmental disorder not otherwise specified; PLI: impairment; SLI: that involves limitations learning use absence factors such low nonverbal IQ, hearing neurological damage (Leonard, 1998). disorder: current research suggests approximately 7% children experience (Tomblin et al., 1997). also but additionally characterised by concurrent social interaction repetitive/limited behavioural repertoires (American Psychiatric Association, 1994; World Health Organization, 1993). rare thought 20‐40/10,000, i.e., .2 .4% population (see Charman, 2002; Fombonne, 2003 reviews).