Author(s): Sitnick SL, GoodlinJones BL, Anders TF
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Abstract STUDY OBJECTIVES: This study compared actigraphy with videosomnography in preschool-aged children, with special emphasis on the accuracy of detection of nighttime awakenings. DESIGN: Fifty-eight participants wore an actigraph for 1 week and were videotaped for 2 nights while wearing the actigraph. SETTING: Participants were solitary sleepers, studied in their homes. PARTICIPANTS: One group (n = 22) was diagnosed with autism, another group (n = 11) had developmental delays without autism, and a third group (n = 25) were typically developing children; age ranged from 28 to 73 months (mean age 47 months); 29 boys and 29 girls. INTERVENTIONS: N/A. MEASUREMENTS AND RESULTS: Nocturnal sleep and wakefulness were scored from simultaneously recorded videosomnography and actigraphy. The accuracy of actigraphy was examined in an epoch-by-epoch comparison with videosomnography. Findings were 94\% overall agreement, 97\% sensitivity, and 24\% specificity. Statistical corrections for overall agreement and specificity resulted in an 89\% weighted-agreement and 27\% adjusted specificity. CONCLUSIONS: Actigraphy has poor agreement for detecting nocturnal awakenings, compared with video observations, in preschool-aged children.
This article was published in Sleep
and referenced in Journal of Metabolic Syndrome