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has been cited by the following article:

• TITLE: Factors Associated with Excessive Daytime Sleepiness in Obstructive Sleep Apnea Syndrome under CPAP Treatment

  AUTHORS: Wataru Yamadera, Shintaro Chiba, Masayuki Iwashita, Ryo Aoki, Daisuke Harada, Miki Sato, Hiroto Moriwaki, Keita Obuchi, Motohiro Ozone, Seiji Nishino, Hiroshi Itoh, Kazuhiko Nakayama

  KEYWORDS: Obstructive Sleep Apnea Syndrome; Continuous Positive Airway Pressure; Excessive Daytime Sleepiness; Japanese Version of the Pittsburgh Sleep Quality Index (PSQI-J); Behavioral Induced Insufficient Sleep Syndrome

  JOURNAL NAME: International Journal of Clinical Medicine, Vol.3 No.3, May 29, 2012

  ABSTRACT: The purpose of this study was to assess factors associated with subjective sleep evaluation, chiefly excessive daytime sleepiness (EDS) in obstructive sleep apnea syndrome (OSAS) adult outpatients under continuous positive airway pressure (CPAP) treatment. One thousand and forty-eight OSAS outpatients (mean age: 51.4% male: 90.5%) who were treated by CPAP were consecutively collected. Age, sex, CPAP compliance (CPAP usage as their device of nights with application-time of at least 4 hours per night objectively; %usage ≥ 4 h/d), and Japanese version of the Pittsburgh Sleep Quality Index (PSQI-J) of the patients showing EDS (Japanese version of the Epworth Sleepiness Scale; JESS ≥ 11) were compared cross-sectionally with those of the patients who did not show EDS (JESS