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  • A systematic review of two outcomes in autism spectrum disorder – epilepsy and mortality

    Author(s)
    Woolfenden, Sue
    Sarkozy, Vanessa
    Ridley, Greta
    Coorey, Michael
    Williams, Katrina
    Griffith University Author(s)
    Ridley, Greta
    Year published
    2012
    Metadata
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    Abstract
    Aim It has been reported that rates of epilepsy and mortality are higher among the population with autism spectrum disorder (ASD) than in the general population. The aim of this systematic review is to provide comprehensive evidence for clinicians, carers, and people with ASD regarding these outcomes. Method Studies were eligible for inclusion if the main focus of the study involved observation over a period of 12 months or more of an initially defined population (with appropriate diagnostic label). Studies were also required to have at least 30 participants in order to differentiate case series from cohort studies. The ...
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    Aim It has been reported that rates of epilepsy and mortality are higher among the population with autism spectrum disorder (ASD) than in the general population. The aim of this systematic review is to provide comprehensive evidence for clinicians, carers, and people with ASD regarding these outcomes. Method Studies were eligible for inclusion if the main focus of the study involved observation over a period of 12 months or more of an initially defined population (with appropriate diagnostic label). Studies were also required to have at least 30 participants in order to differentiate case series from cohort studies. The Cochrane Database of Systematic Reviews, the Database of Reviews of Effectiveness, MEDLINE, PsycINFO, EMBASE, and CINAHL were searched. The date of the last search was September 2010. The risk of bias of included studies was assessed and a meta-analysis was undertaken. Results Twenty-one studies were identified, 16 measuring the percentage of participants with epilepsy and five measuring mortality using a standardized mortality ratio. The pooled estimate for the percentage of participants with epilepsy was 1.8% (95% CI 0.4-9.4%) in studies in which the majority did not have an intellectual disability and the mean age was <12 years at follow-up, and 23.7% (95% CI 17.5-30.5%) in studies in which the majority did have an intellectual disability and the mean age at follow-up was more than 12 years. The pooled estimate for the standardized mortality ratio was 2.8 (95% CI 1.8-4.2). Interpretation The prevalence of epilepsy is higher among the population with ASD than in the general population. People with ASD have a higher risk of mortality than the general population. This has important health promotion implications.
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    Journal Title
    Developmental Medicine & Child Neurology
    Volume
    54
    Issue
    4
    DOI
    https://doi.org/10.1111/j.1469-8749.2012.04223.x
    Subject
    Medical and Health Sciences not elsewhere classified
    Medical and Health Sciences
    Publication URI
    http://hdl.handle.net/10072/61510
    Collection
    • Journal articles

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