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Age Related Changes in Objectively Measured Sleep Observed in a Large Population in the Home...

Shambroom JR, Fabregas SE Background and Aims ...

A Wireless System (Zeo, (Zeo Inc., Inc Newton, Newton MA,) MA ) has been developed that utilizes a noprep dry fabric sensor incorporated in a headband that transmits data to a base station. The data is processed by a neural network, which determines and records sleep stages in real time. The Wireless System has been previously validated1,2. A summary objective measure of a night's sleep, ZQ, has been created. It is intended as an educational tool for consumers, providing a window into deeper insights about their sleep. The DOZER sleep registry is an IRB approved research database of sleep in the US population in the home. Its participants purchase and use the Wireless System as they see fit. Data that has been uploaded are deidentified and coded before inclusion in the registry. To date, this registry contains data from over 7,000 subjects , and over 200,000 nights. Th aim The i of f this thi study t d was to t describe d ib agerelated l t d changes h i sleep in l quantity tit and quality in a large sample using objective data collected in the home....

Sleep Research Center, Zeo, Inc, Newton, MA, United States Results ...

Age category had h d a significant i ifi effect ff on all sleep measures (F(5,5092)>10.9, p<0.0001)....

500 450 400 350 300 250 200 150 100 50 0...

Sleep Across Age Categories...

LPS WTDS TR TD TL...

Sample Size (n n)...

1500 1000 500 0...

1729 A Category Age C t...

ZQ poin nts...

1729 3039 4049 5059 6069 70+...

Subjects 5099 subjects, 24.4% Female Aged 1790+ years 141,019 nights of data Procedure All subjects in the DOZER sleep registry who included at least one night of sleep data as of March 30, 2010, were included. Only nocturnal sleep recordings lasting at least 3 hours were included. All subjects 90 years of age or older were categorized as "90+" in conformance with deidentification standards. y Analysis Sleep measures were averaged for all nights contributed by each subject. Sleep measures included Total Sleep Time (TST) Latency to Persistent Sleep (of 10 continuous minutes of sleep, after using begins recording) (LPS) Wake Time During Sleep (between LPS and last epoch of sleep) (WTDS) Time in REM (TR), Percent in REM (%TR) Time in Light (R&K Stages 1 and 2) (TL), Percent in Light (%TL) Time in Deep (R&K Stages 3 and 4) (TD), ...

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