Habitual Sleep Duration, Unmet Sleep Need, and Excessive Daytime Sleepiness in Korean Adults

Hwangbo, Young; Kim, Won Joo; Chu, Min Kyung; Yun, Chang Ho; Yang, Kwang Ik

doi:10.3988/jcn.2016.12.2.194

Cited by 19 publications

(12 citation statements)

References 49 publications

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“…In other studies, the prevalence of poor sleep was lower in reports from Japan (9.5% of total men and 14.3% of total women having PSQI ≥ 6)30 and China (26.36% having PSQI ≥ 6)31. However, the prevalence of 34.9% of poor sleepers described here is similar to what has been reported in United States3233 and Korea34. Notwithstanding this point, none of 1,334 subjects included in this report classified their own sleep quality as “very bad”.…”

Section: Discussionsupporting

confidence: 84%

“…Notwithstanding this point, none of 1,334 subjects included in this report classified their own sleep quality as “very bad”. The mean of subjective sleepiness reported here is comparable to what was found in other studies in less urbanized populations (9.1 ± 3.4 for men and 7.6 ± 3.2 for women)12, but below what has been reported in highly urbanized centres (13.1 ± 2.3 for the entire population)34. Thus, our findings show that poor sleep quality is not necessarily less common in a small quiet rural town with a high prevalence of physical labour (it is worth noting that access to electricity is essentially universal in Baependi).…”

Section: Discussionsupporting

confidence: 83%

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Timing and quality of sleep in a rural Brazilian family-based cohort, the Baependi Heart Study

Beijamini

Knutson

Lorenzi-Filho

et al. 2016

Sci Rep

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Sleep is modulated by several factors, including sex, age, and chronotype. It has been hypothesised that contemporary urban populations are under pressure towards shorter sleep duration and poorer sleep quality. Baependi is a small town in Brazil that provides a window of opportunity to study the influence of sleep patterns in a highly admixed rural population with a conservative lifestyle. We evaluated sleep characteristics, excessive daytime sleepiness, and chronotype using the Pittsburgh Sleep Quality Index, Epworth Sleepiness Scale and Morningness-Eveningness Questionnaire questionnaires, respectively. The sample consisted of 1,334 subjects from the Baependi Heart study (41.5% male; age: 46.5 ± 16.2 y, range: 18–89 years). Average self-reported sleep duration was 07:07 ± 01:31 (bedtime 22:32 ± 01:27, wake up time: 06:17 ± 01:25 hh:min), sleep quality score was 4.9 + 3.2, chronotype was 63.6 ± 10.8 and daytime sleepiness was 7.4 ± 4.8. Despite a shift towards morningness in the population, chronotype remained associated with reported actual sleep timing. Age and sex modulated the ontogeny of sleep and chronotype, increasing age was associated with earlier sleep time and shorter sleep duration. Women slept longer and later, and reported poorer sleep quality than men (p < 0.0001). This study provides indirect evidence in support of the hypothesis that sleep timing was earlier prior to full urbanisation.

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Section: Discussionsupporting

confidence: 84%

Section: Discussionsupporting

confidence: 83%

Timing and quality of sleep in a rural Brazilian family-based cohort, the Baependi Heart Study

Beijamini

Knutson

Lorenzi-Filho

et al. 2016

Sci Rep

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“…Rate of excessive daytime sleepiness defined by ESS score of 11 or more was 9.0% consistent with previous studies showing daytime sleepiness defined by ESS in professional drivers ranges between 4% and 20% [20,21]. The rate was approximately comparable to the finding of a population-based cross-sectional study in Korea in which prevalence of excessive daytime sleepiness was 11.9% [22]. Prevalence of excessive daytime sleepiness in this study was not higher than the general population.…”

Section: Discussionsupporting

confidence: 90%

“…Clinical insomnia defined by ISI score 15 or more was reported in 16.9% of CMV drivers, higher compared with prevalence of 4.6% in a population-based cross-sectional study in Korea using the same measure as that used in our study [22]. Previous studies report prevalence of insomnia in CMV drivers ranging between 18 to 28% [23,24].…”

Section: Discussioncontrasting

confidence: 55%

Sleep Status and the Risk Factor of Drowsy-Related Accidents in Commercial Motor Vehicle Drivers

et al. 2018

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Background and ObjectiveaaThe purpose of this study was to describe prevalence of sleep problems including obstructive sleep apnea (OSA), insomnia, and sleep insufficiency in commercial motor vehicle (CMV) drivers, and to quantify risk of drowsy-related accidents in CMV drivers. MethodsaaCMV drivers were invited to participate in this study. Participants were asked to complete a questionnaire about sleep habits, sleep disorders, work environments, and experience of drowsy-related accidents. A home sleep test (Watch-PAT 200) was also undertaken to detect OSA. resultsaaAmong 110 participants, 89 with eligible data of questionnaires and home sleep tests were included in the analysis. 91.0% of participants had OSA with peripheral arterial tonometry respiratory distress index (pRDI) ≥ 5/h and 23.6% had moderate to severe OSA with pRDI ≥ 15/h. 55.1% perceived that their sleep is insufficient. 52.3% of participants experienced drowsy driving. Drowsy driving-related motor vehicle crashes (MVCs) and near miss MVCs were reported by 9.6% and 37.9% of participants, respectively. Multiple regression analysis showed that increased risk of drowsy driving was associated with perceived sleep insufficiency [odds ratio (OR) = 3.48, 95% confidence interval (CI) 1.26-9.64]. Increased risk of drowsy driving-related near miss MVC was associated with perceived sleep insufficiency (OR = 3.06, 95% CI 1.11-8.44) and continuous driving for more than 4 hours (OR = 3.10, 95% CI 1.00-9.58). ConclusionsaaOSA and perceived sleep insufficiency are prevalent in CMV drivers. Perceived sleep insufficiency and longer continuous driving hours increased risk of drowsy-related accidents.

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“…EDS was associated with unmet sleep duration, insomnia, high frequency of snoring, and BMI after adjusting for sociodemographic factors in an adult population. 31 …”

Section: Discussionmentioning

confidence: 99%

Prevalence of Self-Perceived Snoring and Apnea and Their Association with Daytime Sleepiness in Korean High School Students

et al. 2017

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Background and PurposeThere has been no nationwide population-based study of the prevalence of self-perceived snoring/apnea in Korean adolescents. The purpose of this study was to estimate prevalence of self-perceived snoring/apnea in Korean high-school students and to evaluate their association with daytime sleepiness.MethodsAn online survey was used to investigate 12,672 students at 75 high schools across the 15 nationwide districts of South Korea. The variables were obtained using a self-reported questionnaire. The students answered questions about self-perceived snoring/apnea during the past 30 days. Daytime sleepiness was measured using a validated Korean version of the Epworth Sleepiness Scale, which was modified for adolescents. Covariates were the sex, school grade, frequency of self-perceived snoring/apnea, body mass index, sleep duration during a school day, and subjective perception of sleep duration.ResultsThe prevalence of self-perceived snoring/apnea was 22.8% (26.4% for males vs. 18.8% for females, p<0.001) and 9.2% (10.5% for males vs. 7.7% for females, p<0.001). Obesity was significantly associated with self-perceived snoring [odds ratio (OR)=2.18, 95% confidence interval (CI)=1.94–2.46] and apnea (OR=1.57, 95% CI=1.33–1.86). Multivariate analysis showed that any frequency of self-perceived snoring/apnea was significantly associated with excessive daytime sleepiness (EDS). The OR of EDS increased significantly with the frequency of snoring and apnea. Female, sleep duration of <5 hours during a school day, and subjective perceptions of insufficient and considerable sleep durations were also significantly associated with EDS.ConclusionsThe prevalence of self-perceived snoring/apnea was significantly higher in students who were male and obese. Students with self-perceived snoring/apnea exhibited more significant EDS and an increased risk of EDS as the frequency of snoring and apnea increased.

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Habitual Sleep Duration, Unmet Sleep Need, and Excessive Daytime Sleepiness in Korean Adults

Cited by 19 publications

References 49 publications

Timing and quality of sleep in a rural Brazilian family-based cohort, the Baependi Heart Study

Timing and quality of sleep in a rural Brazilian family-based cohort, the Baependi Heart Study

Sleep Status and the Risk Factor of Drowsy-Related Accidents in Commercial Motor Vehicle Drivers

Prevalence of Self-Perceived Snoring and Apnea and Their Association with Daytime Sleepiness in Korean High School Students

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