• J. Occup. Environ. Med. · Oct 2009

    Comparative Study

    Correlation between screening for obstructive sleep apnea using a portable device versus polysomnography testing in a commercial driving population.

    • Marc R Watkins, James B Talmage, Matthew S Thiese, Toney B Hudson, and Kurt T Hegmann.
    • Division of Occupational and Environmental Medicine, Meharry Medical College, Nashville, TN, USA. marcwatkins@comcast.net
    • J. Occup. Environ. Med. 2009 Oct 1; 51 (10): 1145-50.

    ObjectiveTo compare the accuracy of portable monitoring for obstructive sleep apnea (OSA) with polysomnography (PSG) in commercial drivers.MethodsA consecutive case series of drivers were screened for OSA using recent validated consensus conference criteria at a single occupational medicine clinic; those screening positive were tested with a portable OSA screening device while awaiting PSG.ResultsThree hundred forty-six drivers were screened and 34 completed PSG and portable monitoring. Comparing the portable device to PSG at a definition of OSA as an apnea hypopnea index (AHI) >or=15, positive predictive value is 0.64 with a 0.87 negative predictive value. Positive likelihood ratio is 4.20. Linear regression model found statistically significant relationship (P = 0.0004) between the portable device and PSG AHI values.ConclusionAlthough not perfect, portable monitoring may be useful in further stratifying risk in drivers who have a high probability of having OSA.

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