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456 results on '"Yun, Chang-Ho"'

7. Longitudinal changes in sleep and sleep-related symptoms among Korean adults between 2010 to 2022, including the COVID-19 pandemic period.

Author

Park, Hea Ree, Lee, Seo-Young, Moon, Hye-Jin, Kim, Jee Hyun, Cho, Jae Wook, Cho, Yong Won, Yun, Chang-Ho, Han, Su-Hyun, and Chu, Min Kyung

Subjects
SLEEP duration, SLEEP interruptions, SOMNOLOGY, COVID-19 pandemic, SLEEP, DROWSINESS
Abstract

Background and purpose: The coronavirus disease 2019 (COVID-19) pandemic has significantly impacted people's lifestyles, changing sleep patterns. This study investigated changes in sleep patterns and disturbances in South Koreans over the past decade, including during the pandemic. Methods: We compared data from the Korean Sleep Headache Society Phase I survey (n = 2484; conducted in 2010) and the National Sleep Survey of South Korea 2022 (n = 3729; conducted in 2022), involving participants aged 20–69 years. Changes in sleep schedule, sleep duration, social jet lag, insomnia, and daytime sleepiness were explored. Results: Workday bedtimes were advanced and free-day bedtimes and workday and free-day waking times were delayed during the pandemic. Increased circadian preference for eveningness and social jet lag were noted. A significant decrease in sleep duration and sleep efficiency, along with an increased prevalence of insomnia and daytime sleepiness, was noted with age- and sex-specific variations. Conclusions: Over the past decade, including during the COVID-19 pandemic, sleep habits have changed significantly and sleep problems worsened. This study emphasize the need for more comprehensive public health strategies and research to facilitate sleep recovery in the post-pandemic period within a society known for its high prevalence of sleep deprivation. [ABSTRACT FROM AUTHOR]

Published
2024
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33. Association between older subjective age and poor sleep quality: a population-based study.

Author

Yoon, Jee-Eun, Oh, Dana, Hwang, Inha, Park, Jung Ah, Im, Hee-Jin, Thomas, Robert J., Kim, Daeyoung, Yang, Kwang Ik, Chu, Min Kyung, and Yun, Chang-Ho

Subjects
SLEEP quality, AGE, MIDDLE-aged women, OLDER women, CONFIDENCE intervals
Abstract

To examine the association of subjective age (SA) with sleep quality in an adult population. In the Korean Sleep and Headache Study, 2,349 participants (49.2% men; 48.1 ± 16.4 years old) were interviewed face-to-face using structured questionnaires between September and December 2018. SA was assessed by asking participants their perceived age in years and then compared with their chronological age (CA). Participants were assigned to three groups: feeling younger, feeling their age, and feeling older. Sleep quality was assessed using the Pittsburgh Sleep Quality Index (PSQI). Association between SA and sleep quality was analyzed with multiple linear regression controlling for demographics, psychosocial, and sleep characteristics. The group feeling older (n = 404, 17.2%; men, 58.2%; age, 46.5 ± 16.2 years) had worse sleep quality than the groups feeling younger and feeling their age (PSQI score, 4.3 ± 2.7, 3.8 ± 2.4, 3.4 ± 2.1, respectively, p <.001; prevalence of poor sleep quality, 29.0%, 18.4%, 13.5% respectively, p <.001). The association between SA and the PSQI score remained significant after adjusting for confounders (β = 1.05, 95% confidence interval 0.26, 1.83; p <.001). Stratified analyses by sex and CA showed that the association between SA and the PSQI score was significant only in women and in middle-aged and older group (aged 50–79), suggesting that sex and CA modified the association. Age perception was associated with self-reported sleep quality, independent of CA. SA may be a useful marker that complements the conventional assessment of subjective sleep quality. [ABSTRACT FROM AUTHOR]

Published
2023
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