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This research aims to validate actigraphy against polysomnography in school-aged children born prematurely to assess sleep characteristics.

May 31, 2016SLEEPOpen Access

Validation of Actigraphy in Middle Childhood

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This research aims to validate actigraphy against polysomnography in school-aged children born prematurely to assess sleep characteristics.
148 children born preterm aged 5-12 wore Actiwatch-2 for one night with polysomnography concurrently.
Measured sleep variables included total sleep time, sleep onset latency, and sleep efficiency.
Used epoch-by-epoch comparisons for sensitivity, specificity and accuracy evaluations.
Actigraphy underestimated total sleep time by 30 minutes and sleep efficiency by 5%.
For a third of the children, sleep onset latency was underestimated or overestimated by at least 10 minutes.
Sensitivity was high at 0.88 and accuracy at 0.84, but specificity was low at 0.46.

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Randomized trial validates actigraphy for measuring sleep in preterm children, suggesting careful interpretation is needed.

Meltzer et al. (2016) studied this question.

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