BACKGROUND: @entity27 ( @entity27 ) is associated with poor @entity25 and a high incidence of nondipping. The aim of this study was to determine the association of sleep @entity551 (BP) dipping in an @entity27 population. METHODS: A total of 44 untreated subjects with mild to severe @entity27 underwent overnight-attended polysomnography and 24-h ambulatory BP monitoring. Subjects were off antihypertensive medication. The percentage of slow wave sleep, percentage of time awake after sleep onset during the sleep period, sleep efficiency, and arousal index were chosen as measurements of @entity25 . Dipping was evaluated using the change in systolic BP, diastolic BP, and mean arterial pressure. @entity1 were classified as dippers and nondippers based on a nocturnal drop in mean arterial pressure > 10%. Differences between groups were evaluated by independent sample t tests. Pearson correlation and linear regression were used to evaluate the association of @entity25 and dipping. RESULTS: There were no differences between dippers and nondippers with regard to body mass index, age, or respiratory disturbance index. A total of 84% were nondippers. No difference was found between dippers and nondippers in @entity25 . None of the @entity25 measures correlated with the measurements of dipping. In multiple regression analyses, the percentage of slow wave sleep and arousal index each independently predicted only a small percentage of the variance (approximately 10%) of nocturnal DBP dipping. CONCLUSIONS: The prevalence of nondipping was very high in a population of untreated @entity1 with mild to severe @entity27 . Nonetheless, @entity25 did not appear to be related to BP dipping.

Sleep quality and blood pressure XXXX .

@entity1 :: ('9606', 'Species') :: ['Patients', 'patients'] @entity551 :: ('MESH:D007022', 'Disease') :: ['quality and nocturnal blood pressure'] @entity27 :: ('MESH:D020181', 'Disease') :: ['Obstructive sleep apnea', 'OSA'] @entity25 :: ('MESH:D012893', 'Disease') :: ['sleep quality']
@entity27 :: (MESH:D020181,Disease) :: ['dipping in obstructive sleep apnea']
