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Convergent validity of actigraphy with polysomnography and parent reports when measuring sleep in children with Down syndrome.

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Title: Convergent validity of actigraphy with polysomnography and parent reports when measuring sleep in children with Down syndrome.
Authors: Esbensen, A. J., Hoffman, E. K., Stansberry, E., Shaffer, R.
Source: Journal of Intellectual Disability Research. Apr2018, Vol. 62 Issue 4, p281-291. 11p. 5 Charts.
Subjects: Sleep apnea syndromes, Actigraphy, Research evaluation, Sleep, Polysomnography, Down syndrome, Parent attitudes, Research methodology evaluation, Diagnosis
Abstract: Abstract: Background: There is a need for rigorous measures of sleep in children with Down syndrome as sleep is a substantial problem in this population and there are barriers to obtaining the gold standard polysomnography (PSG). PSG is cost‐prohibitive when measuring treatment effects in some clinical trials, and children with Down syndrome may not cooperate with undergoing a PSG. Minimal information is available on the validity of alternative methods of assessing sleep in children with Down syndrome, such as actigraphy and parent ratings. Our study examined the concurrent and convergent validity of different measures of sleep, including PSG, actigraphy and parent reports of sleep among children with Down syndrome. Method: A clinic (n = 27) and a community (n = 47) sample of children with Down syndrome were examined. In clinic, children with Down syndrome wore an actigraph watch during a routine PSG. In the community, children with Down syndrome wore an actigraph watch for a week at home at night as part of a larger study on sleep and behaviour. Their parent completed ratings of the child's sleep during that same week. Results: Actigraph watches demonstrated convergent validity with PSG when measuring a child with Down syndrome's total amount of sleep time, total wake time after sleep onset and sleep period efficiency. In contrast, actigraph watches demonstrated poor correlations with parent reports of sleep, and with PSG when measuring the total time in bed and total wake episodes. Actigraphy, PSG and parent ratings of sleep demonstrated poor concurrent validity with clinical diagnosis of obstructive sleep apnoea. Conclusion: Our current data suggest that actigraph watches demonstrate convergent validity and are sensitive to measuring certain sleep constructs (duration, efficiency) in children with Down syndrome. However, parent reports, such as the Children's Sleep Habits Questionnaire, may be measuring other sleep constructs. These findings highlight the importance of selecting measures of sleep related to target concerns. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Intellectual Disability Research is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Convergent validity of actigraphy with polysomnography and parent reports when measuring sleep in children with Down syndrome.
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Intellectual+Disability+Research%22">Journal of Intellectual Disability Research</searchLink>. Apr2018, Vol. 62 Issue 4, p281-291. 11p. 5 Charts.
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  Data: <searchLink fieldCode="DE" term="%22Sleep+apnea+syndromes%22">Sleep apnea syndromes</searchLink><br /><searchLink fieldCode="DE" term="%22Actigraphy%22">Actigraphy</searchLink><br /><searchLink fieldCode="DE" term="%22Research+evaluation%22">Research evaluation</searchLink><br /><searchLink fieldCode="DE" term="%22Sleep%22">Sleep</searchLink><br /><searchLink fieldCode="DE" term="%22Polysomnography%22">Polysomnography</searchLink><br /><searchLink fieldCode="DE" term="%22Down+syndrome%22">Down syndrome</searchLink><br /><searchLink fieldCode="DE" term="%22Parent+attitudes%22">Parent attitudes</searchLink><br /><searchLink fieldCode="DE" term="%22Research+methodology+evaluation%22">Research methodology evaluation</searchLink><br /><searchLink fieldCode="DE" term="%22Diagnosis%22">Diagnosis</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: Abstract: Background: There is a need for rigorous measures of sleep in children with Down syndrome as sleep is a substantial problem in this population and there are barriers to obtaining the gold standard polysomnography (PSG). PSG is cost‐prohibitive when measuring treatment effects in some clinical trials, and children with Down syndrome may not cooperate with undergoing a PSG. Minimal information is available on the validity of alternative methods of assessing sleep in children with Down syndrome, such as actigraphy and parent ratings. Our study examined the concurrent and convergent validity of different measures of sleep, including PSG, actigraphy and parent reports of sleep among children with Down syndrome. Method: A clinic (n = 27) and a community (n = 47) sample of children with Down syndrome were examined. In clinic, children with Down syndrome wore an actigraph watch during a routine PSG. In the community, children with Down syndrome wore an actigraph watch for a week at home at night as part of a larger study on sleep and behaviour. Their parent completed ratings of the child's sleep during that same week. Results: Actigraph watches demonstrated convergent validity with PSG when measuring a child with Down syndrome's total amount of sleep time, total wake time after sleep onset and sleep period efficiency. In contrast, actigraph watches demonstrated poor correlations with parent reports of sleep, and with PSG when measuring the total time in bed and total wake episodes. Actigraphy, PSG and parent ratings of sleep demonstrated poor concurrent validity with clinical diagnosis of obstructive sleep apnoea. Conclusion: Our current data suggest that actigraph watches demonstrate convergent validity and are sensitive to measuring certain sleep constructs (duration, efficiency) in children with Down syndrome. However, parent reports, such as the Children's Sleep Habits Questionnaire, may be measuring other sleep constructs. These findings highlight the importance of selecting measures of sleep related to target concerns. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Journal of Intellectual Disability Research is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1111/jir.12464
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        Text: English
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      – SubjectFull: Sleep apnea syndromes
        Type: general
      – SubjectFull: Actigraphy
        Type: general
      – SubjectFull: Research evaluation
        Type: general
      – SubjectFull: Sleep
        Type: general
      – SubjectFull: Polysomnography
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      – SubjectFull: Down syndrome
        Type: general
      – SubjectFull: Parent attitudes
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      – SubjectFull: Research methodology evaluation
        Type: general
      – SubjectFull: Diagnosis
        Type: general
    Titles:
      – TitleFull: Convergent validity of actigraphy with polysomnography and parent reports when measuring sleep in children with Down syndrome.
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            NameFull: Esbensen, A. J.
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            NameFull: Hoffman, E. K.
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            NameFull: Stansberry, E.
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              Text: Apr2018
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