Actigraph placement and sleep estimation in children.
OBJECTIVE
To determine whether actigraph placement affects sleep estimation in children.


METHODS
Descriptive study.


METHODS
Naturalistic setting.


METHODS
Twenty children aged 7-12 years from primary schools.


METHODS
N/A.


METHODS
Motor activity was measured from the waist and non-dominant wrist with actigraphs for three consecutive days during a school week.


RESULTS
The minute-by-minute agreement of sleep-wake states between the two measurement sites was 92.5%. Wrist- and waist-recorded sleep parameters correlated well and the mean values did not differ.


CONCLUSIONS
Although the placement of the actigraph slightly affected the measured activity parameters, its influence on 3-night mean sleep estimates in children was not statistically significant.
Paavonen
E Juulia
EJ
Department of Child Psychiatry, University of Helsinki, Finland.
Fjällberg
Mika
M
Steenari
Maija-Riikka
MR
Aronen
Eeva T
ET
D000293:Adolescent; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D017286:Polysomnography / Q000295:instrumentation*; D012893:Sleep Wake Disorders / Q000175:diagnosis* / Q000453:epidemiology