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J Sleep Med > Volume 17(2); 2020 > Article
J Sleep Med. 2020;17(2):148-153.         doi: https://doi.org/10.13078/jsm.200027
Is Split-Night Polysomnography Valid for Women with Obstructive Sleep Apnea?
Mi-Ri Kang , Ki-Hwan Ji
Department of Neurology, Busan Paik Hospital, Inje University College of Medicine, Busan, Korea
Corresponding Author: Ki-Hwan Ji ,Tel: +82-51-890-8613, Fax: +82-51-890-6367, Email: kihwanji@gmail.com
Received: November 4, 2020   Revised: November 24, 2020   Accepted: November 25, 2020   Published online: December 31, 2020
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Objectives: Split-night polysomnography (PSG) can be used for the diagnosis and treatment of obstructive sleep apnea (OSA). Recently, the American Academy of Sleep Medicine has broadened the indication of split-night PSG from severe to moderate OSA in a time window of 2 hours. However, majority pieces of evidence have been derived from the male predominant study population. The objective of this study was to investigate the diagnostic accuracy of split-night PSG in Korean women.
Methods: This study included 122 adult women with OSA. Apnea-hypopnea index (AHI) from the first 120 minutes of clock time (T120-AHI) and full-night AHI (FN-AHI) were compared using the concordance correlation coefficient (CCC) method and Bland-Altman plot. Receiver operating characteristic (ROC) curves and the area under the ROC curves were plotted with various cut-off points of AHI.
Results: The T120-AHI correlated with FN-AHI (CCC=0.77). The area under the ROC curve for T120-AHI with FN-AHI ≥15 was 0.865, with a sensitivity of 78.6% and specificity of 82.7%.
Conclusions: T120-AHI showed a significant correlation with the FN-AHI value in Korean female patients with OSA.
Keywords: Split-night polysomnography | Polysomnography | Woman | Obstructive sleep apnea | Daignosis
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