The Snoring Spectrum: Materials and Methods

In: Snoring

3 Aug 2014

Many issues regarding the overall health impact of nonapneic snoring have not been resolved. A recently published review of this topic has emphasized that although many investigators have measured snoring as part of their study protocols, there is little agreement as to the details of measurement, signal analysis, and interpretation. Perhaps the most important drawback of all of the measurements is the lack of biological validation. To date, there are no studies validating the electronic measurement of a sound scored as a snore by a polysomnographic technologist or by a computer against its perception as snoring by the listeners.
This study is a systematic investigation to quantify the sound pressure levels of snoring generated during polysomnographic testing, and to explore the associations between snoring sound intensity and a variety of demographic and clinical factors. All of the study participants underwent polysomnographic monitoring with acoustic measurement of sound intensity. Sound measurements were performed using a standard technique, so that snoring sound intensity measures could be related to polysomno-graphic and clinical measures, as well as to governmental and regulatory acoustic standards fully canadianfamilypharmacy. The study was conducted with the approval of the HealthEast Institutional Review Board and in accordance with HealthEast research policies.
Materials and Methods
Study Population
All of the patients referred to a sleep laboratory for polysom-nographic testing from 1980 to 1994 were investigated for snoring sound intensity levels using a method that has previously been reported. Sound level recordings were available for the 1,139 patients who comprised the study population.
Data Collection
Acoustic Data: Sound intensity levels during sleep were prospectively measured during polysomnographic testing using a consistent methodology. The acoustic data acquisition and display methods, and the sonographic block diagram for conducting the acoustic measurement have been described previously.


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