Environmental Noise and Sleep Disturbance: Night-to-Night Variability of Sleep/Wake Pattern

Sleep Medicine Research

Chang Sun Sim¹  Jiho Lee¹  Joo Hyun Sung¹  Seong Woo Jo¹  Min-Woo Jo²  Seockhoon Chung³  Chul Lee³  Soyoung Youn³  Jangho Park⁴ 

[1] Department of Occupational and Environmental Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea;Department of Preventive Medicine, University of Ulsan College of Medicine, Seoul, Korea;Department of Psychiatry, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea;Department of Psychiatry, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea;

关键词: Insomnia;    Noise;    Sleep;    Actigraphy;   

DOI  :  10.17241/smr.2016.00122

来源: DOAJ

【 摘 要 】

Actigraphy is useful to assess sleep pattern of subjects for several days to several weeks, and collected sleep data is usually averaged out to know the general sleep pattern of each individual. However, intra-individual variability should be considered when assessing sleep patterns, with regard to the phenomenon of daily fluctuation. The aim of this study was to explore whether the mean sleep indices reflect intra-individual variability with regard to environmental noise. Indoor noise and sleep pattern were collected over 5 days, among 22 citizens of Ulsan Metropolitan city. We observed an association between environmental noise indices and various sleep indices such as sleep efficiency, number of awakenings, or fragmentation indices when we analyzed the data of 108 nights from 22 subjects. However, the significances were weakened when we analyzed noise and sleep/wake pattern after averaging out. In conclusion, we observed that the sleep/wake pattern over several days to weeks should not be averaged out when studied in relation with variable physiological phenomena, such as night-to-night variability.

【 授权许可】

Unknown