Annals of Thoracic Medicine Official publication of the Saudi Thoracic Society, affiliated to King Saud University
 
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ORIGINAL ARTICLE
Year : 2013  |  Volume : 8  |  Issue : 1  |  Page : 53-57

Sleep estimation using BodyMedia's SenseWear™ armband in patients with obstructive sleep apnea


Pulmonary Medicine Department, University Sleep Disorders Center, College of Medicine, King Saud University, Riyadh, Kingdom of Saudi Arabia

Correspondence Address:
Ahmed S BaHammam
University Sleep Disorders Center, College of Medicine, King Saud University, P.O. Box 225503, Riyadh
Kingdom of Saudi Arabia
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DOI: 10.4103/1817-1737.105720

PMID: 23440703

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Objectives: We aimed to evaluate the validity of the BodyMedia's SenseWear ™ Armband (BSA) device in estimating total sleep time (TST) in patients with obstructive sleep apnea (OSA). Methods: Simultaneous overnight recordings of in-laboratory polysomnography (PSG) and BSA were performed on (1) 107 OSA patients (mean age of 45.2 ± 14.3 years, mean apnea hypopnea index of 43 ± 35.7/hr and (2) 30 controls matched with OSA patients for age and body mass index. An agreement analysis between the PSG and BSA scoring results was performed using the Bland and Altman method. Results: There was no significant difference in OSA patients between BSA and PSG with regard to TST, total wake time, and sleep efficiency. There was also no significant difference in the controls between BSA and PSG with regard to TST, total wake time, and sleep efficiency. Bland Altman plots showed strong agreement between TST, wake time, and sleep efficiency for both OSA and the controls. The intraclass correlation coefficients revealed perfect agreement between BSA and PSG in different levels of OSA severity and both genders. Conclusion: The current data suggest that BSA is a reliable method for determining sleep in patients with OSA when compared against the gold standard test (PSG). BSA can be a useful tool in determining sleep in patients with OSA and can be combined with portable sleep studies to determine TST.


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