title: Disturbance in daily sleep/wake patterns in patients with cognitive impairment and decreased daily activity.
abstract: The sleep/wake patterns of 121 chronically ill, mentally and physically handicapped patients were visually monitored hourly for 14 consecutive days. Four types of sleep/wake patterns were found. In order to investigate how cognitive and physical functions correlated with sleep disorders, patients were classified based on a scale of mental function and the grading of daily activity. The percent of total sleep hours and the sleep rating, showing disturbances in sleep/wake pattern, were evaluated. We found a high degree of individuality in sleep/wake patterns. Sleep disturbance was associated with daily activity as well as with cognitive impairment. This monitoring system provides medical personnel with valuable information for clinical management.
authors: Department of Geriatric Medicine, Tohoku University School of Medicine, Sendai, Japan.
authors: K
authors: K
authors: Meguro
authors: M
authors: M
authors: Ueda
authors: T
authors: T
authors: Yamaguchi
authors: Y
authors: Y
authors: Sekita
authors: H
authors: H
authors: Yamazaki
authors: Y
authors: Y
authors: Oikawa
authors: Y
authors: Y
authors: Kikuchi
authors: T
authors: T
authors: Matsuzawa
mesh_terms: D000203:Activities of Daily Living; D000368:Aged; D000369:Aged, 80 and over; D000704:Analysis of Variance; D003072:Cognition Disorders / Q000150:complications* / Q000503:physiopathology; D004569:Electroencephalography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012890:Sleep; D012893:Sleep Wake Disorders / Q000209:etiology*; D014851:Wakefulness