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Minerva Pediatrica 2018 Nov 07

DOI: 10.23736/S0026-4946.18.05333-1

Copyright © 2018 EDIZIONI MINERVA MEDICA

lingua: Inglese

Comparison of the Fitbit® Charge and polysomnography for measuring sleep quality in children with sleep disordered breathing

Mohammed HAKIM 1 , Rebecca MILLER 1, Mumin HAKIM 3, Dmitry TUMIN 1, Joseph D. TOBIAS 1, 2, Kris R. JATANA 4, 5, Vidya T. RAMAN 1, 2

1 Department of Anesthesiology & Pain Medicine, Nationwide Children’s Hospital, Columbus, OH, USA; 2 Department of Anesthesiology & Pain Medicine, The Ohio State University College of Medicine, Columbus, OH, USA; 3 Department of General Surgery, Montefiore Medical Centre, New York, NY, USA; 4 Department of Pediatric Otolaryngology, Nationwide Children’s Hospital, Columbus, Ohio, OH, USA; 5 Department of Otolaryngology-Head and Neck Surgery, Wexner Medical Center at Ohio State University, Columbus, OH, USA


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BACKGROUND: Due to the cost and inconvenience of polysomnography (PSG), wristworn accelerometers have been explored as an alternative method to measure sleep efficacy in children with obstructive sleep apnea (OSA) or sleep-disordered breathing (SDB). We compared the measurement of sleep quality with the Fitbit® Charge compared to PSG in children presenting for sleep studies.
METHODS: Children ages 3 to 18 years, presenting for PSG with persistent SDB symptoms were enrolled. During PSG, the Fitbit® Charge was placed on the wrist and timesynchronized with sleep laboratory devices, which were worn while a single-night PSG was performed. Bias and concordance in measurements of total sleep time (TST), total wake time (TWT), and number of awakenings were assessed using paired t-tests, sign-rank tests, and Lin’s concordance coefficient.
RESULTS: The study cohort included 22 patients (9 boys and 13 girls; 9 ± 3 years). TST was significantly overestimated using the Fitbit® Charge (difference in means = 30 min; 95% confidence interval [CI] of difference: 3, 58; p = 0.031), while TWT was underestimated (difference = 23 min; 95% CI: 4, 42; p=0.018). All measures showed a lack of concordance between the Fitbit® Charge and PSG.
CONCLUSIONS: The current prospective study confirms that the Fitbit® Chargé overestimates time spent asleep compared to PSG in children with OSA/SDB symptoms, limiting the validity of sleep monitoring with wearable activity trackers appears in these patients.


KEY WORDS: Polysomnography - Fitbit® charge - Obstructive sleep apnea

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