The Odds Ratio Product (An Objective Sleep Depth Measure): Normal Values, Repeatability, and Change With CPAP in Patients With OSA | Zendy

Charles Penner | Zendy; Bethany Gerardy | Zendy; Rob Ryan | Zendy; Mark V. Williams | Zendy

Open Access

The Odds Ratio Product (An Objective Sleep Depth Measure): Normal Values, Repeatability, and Change With CPAP in Patients With OSA

Author(s) -

Charles Penner,

Bethany Gerardy,

Rob Ryan,

Mark V. Williams

Publication year - 2019

Publication title -

journal of clinical sleep medicine

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.529

H-Index - 92

eISSN - 1550-9397

pISSN - 1550-9389

DOI - 10.5664/jcsm.7812

Subject(s) - medicine , polysomnography , epworth sleepiness scale , intraclass correlation , continuous positive airway pressure , odds ratio , body mass index , anesthesia , obstructive sleep apnea , physical therapy , cohort , apnea , psychometrics , clinical psychology

The Odds Ratio Product (ORP) is an objective measure of sleep depth using the relationships of the powers of different electroencephalogram (EEG) frequencies in a single index. The range of the ORP is 0 (deeply asleep) to 2.5 (fully awake). This investigation seeks to elucidate normal values of non-rapid eye movement ORP (ORP NR ) in healthy individuals, repeatability of the measure, and the change in ORP NR following continuous positive airway pressure (CPAP) treatment.

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