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KMID : 1034320110020020063
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Sleep Medicine Research
2011 Volume.2 No. 2 p.63 ~ p.68
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Subjective and Objective CPAP Compliance in Patients with Obstructive Sleep Apnea Syndrome
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Choi Ji-Ae
Yoon In-Young
Han Eun-Gyeong
Lee Sang-Don
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Abstract
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Background and Objective This study aimed to investigate objective and subjective continuous positive airway pressure (CPAP) compliance in patients with obstructive sleep apnea syndrome (OSAS). Moreover, we evaluated the factors and benefits associated with good CPAP compliance.
Methods: Subjects were 153 OSAS patients who underwent polysomnography for CPAP titration. Subjective compliance was defined as reported CPAP use of at least 4 hours a day for five or more days per week, and objective compliance was defined as CPAP use of at least 4 hours a day for more than 70% of the time recorded in the CPAP machine.
Results: The subjective and objective compliance rates were 34.0% and 20.7%, respectively. Subjectively compliant patients had lower minimum O2 saturation and higher % of time with O2 saturation lower than 90% than did patients declining CPAP treatment. Objectively compliant patients had lower insomnia and depression score and lower minimum O2 saturation than did patients declining CPAP treatment. Daytime sleepiness and subjective sleep quality improved to the same extent in both objectively and subjectively compliant patients.
Conclusions: Lower insomnia score and more severe OSA correlate with good CPAP compliance. CPAP effect was comparable between subjectively and objectively compliant patients.
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KEYWORD
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Obstructive sleep apnea syndrome, Continuous positive airway pressure, Compliance
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