Traffic noise-induced changes in wake-propensity measured with the Odds-Ratio Product (ORP).

Nocturnal traffic noise can disrupt sleep and impair physical and mental restoration, but classical sleep scoring techniques may not fully capture subtle yet clinically relevant alterations of sleep induced by noise. We used a validated continuous measure of sleep depth and quality based on automatic analysis of physiologic sleep data, termed Wake Propensity (WP), to investigate temporal changes of sleep in response to nocturnal noise events in 3-s epochs. Seventy-two healthy participants (mean age 40.3 years, range 18-71 years, 40 females, 32 males) slept for 11 nights in a laboratory, during which we measured sleep with polysomnography. In 8 nights, participants were exposed to 40, 80 or 120 road, rail and/or aircraft noise events with maximum noise levels of 45-65 dB L

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Déclaration de conflit d'intérêts

Declaration of competing interest MY developed, and has a patent on, the ORP Technology. The technology has been licensed to Cerebra Health in Winnipeg. He is a shareholder and receives royalties and consultation fees from Cerebra Health. ORP analysis is provided free of charge for academic research. Other authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.