Performance of wrist-worn home sleep apnea testing (watch-PAT) among individuals with chronic insomnia: a comparative study with polysomnography

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The study evaluated the accuracy of the Watch-PAT device for diagnosing sleep apnea in patients with chronic insomnia.
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44 participants were analyzed, showing a sensitivity of 77.3% and specificity of 100% for identifying moderate-to-severe obstructive sleep apnea.
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Diagnostic agreement was achieved in 82% of subjects when comparing Watch-PAT results with polysomnography.
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The Watch-PAT device overestimated total sleep time and REM sleep duration by 19.9 minutes and 37.2 minutes, respectively.
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The study highlights the need for cautious interpretation of sleep duration and staging parameters from the Watch-PAT device.

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