Relationship between sleep and obesity among U.S. and South Korean college students

Sa, Jaesin; Choe, Siyoung; Cho, Beomyoung; Chaput, Jean‐Philippe; Kim, Gyurin; Park, Chae-Hee; Chung, JaeWoong; Choi, Yoojin; Nelson, Beatrice; Kim, Yong-Kyu

doi:10.1186/s12889-020-8182-2

Cited by 55 publications

(47 citation statements)

References 55 publications

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“…Dietary risk scores of students were largely consistent across all countries with few differences observed. These findings are consistent with the current literature [ 69 , 70 , 71 , 72 , 73 , 74 , 75 , 76 ]. Students from the USA reported the highest absolute dietary risk score, which is consistent with the higher prevalence of overweight and obesity among American students, and higher BMI compared to students in the other countries studied [ 69 , 70 , 71 , 72 , 73 , 74 , 75 , 76 ].…”

Section: Discussionsupporting

confidence: 94%

“…These findings are consistent with the current literature [ 69 , 70 , 71 , 72 , 73 , 74 , 75 , 76 ]. Students from the USA reported the highest absolute dietary risk score, which is consistent with the higher prevalence of overweight and obesity among American students, and higher BMI compared to students in the other countries studied [ 69 , 70 , 71 , 72 , 73 , 74 , 75 , 76 ]. Even though the prevalence of overweight and obesity was higher among USA students, previous work reported that the majority of students from the USA and other countries did not meet the daily recommended servings of fruit and vegetable intake [ 77 , 78 , 79 , 80 , 81 ].…”

Section: Discussionsupporting

confidence: 94%

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Health Behaviors of Higher Education Students from 7 Countries: Poorer Sleep Quality during the COVID-19 Pandemic Predicts Higher Dietary Risk

Zan

Cho

et al. 2021

Clocks & Sleep

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Health behaviors of higher education students can be negatively influenced by stressful events. The global COVID-19 pandemic presents a unique opportunity to characterize and compare health behaviors across multiple countries and to examine how these behaviors are shaped by the pandemic experience. Undergraduate and graduate students enrolled in universities in China, Ireland, Malaysia, South Korea, Taiwan, the Netherlands and the United States (USA) were recruited into this cross-sectional study. Eligible students filled out an online survey comprised of validated tools for assessing sleep quality and duration, dietary risk, alcohol misuse and physical activity between late April and the end of May 2020. Health behaviors were fairly consistent across countries, and all countries reported poor sleep quality. However, during the survey period, the COVID-19 pandemic influenced the health behaviors of students in European countries and the USA more negatively than Asian countries, which could be attributed to the differences in pandemic time course and caseloads. Students who experienced a decline in sleep quality during the COVID-19 pandemic had higher dietary risk scores than students who did not experience a change in sleep quality (p = 0.001). Improved sleep quality was associated with less sitting time (p = 0.010). Addressing sleep issues among higher education students is a pressing concern, especially during stressful events. These results support the importance of making education and behavior-based sleep programming available for higher education students in order to benefit students’ overall health.

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Section: Discussionsupporting

confidence: 94%

Section: Discussionsupporting

confidence: 94%

Health Behaviors of Higher Education Students from 7 Countries: Poorer Sleep Quality during the COVID-19 Pandemic Predicts Higher Dietary Risk

Zan

Cho

et al. 2021

Clocks & Sleep

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“…Notably, data published in 2009 by the American College Health Association's National College Health Assessment indicated that 36.7% of college students were overweight or obese [2]. When investigating the relationship between sleep and obesity among U.S. and South Korean college students, Sa [3] observed higher overweight/obesity rates (59.4%) in Korean males than Black (51.5%) and White males (46.8%) and in Black women (53.8%) than in White (38.8%) and Korean women (24.8%) based on the standard body mass index (BMI) cut points for U.S. students and Asian BMI cut points for Korean students.…”

Section: Introductionmentioning

confidence: 99%

Impact of Stress Levels on Eating Behaviors among College Students

Choi

2020

Nutrients

115

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Weight gain is a common phenomenon among college students, especially those in their first year of university. Transitioning from high school to the college environment might increase perceived stress levels, thus affecting dietary behaviors and metabolism to promote overweight and obesity. The purpose of this study was to investigate the physical activities and dietary behaviors of college students in the context of their perceived stress levels. In addition, the demographic characteristics of the students were compared to ascertain their impact on dietary behaviors. Self-reported questionnaires were distributed to college students on campus in Korea. Perceived stress was measured by the 10-item Perceived Stress Scale (PSS-10), the scores for which were evaluated by independent t-tests to compare the dietary behaviors of the high- and low-perceived stress groups. Exploratory factor analysis was performed and Cronbach’s alphas were computed to assess the validity and internal consistency of the PSS-10 measurement items. Differences in the physical activities and dietary behaviors of the college students based on demographics such as sex, academic year, and residence type were found. Several dietary behaviors were significantly different between students with low and high perceived stress levels. Students with high perceived stress levels exhibited increased unhealthy dietary behaviors such as ready-prepared meal consumption (p < 0.001). These results suggest that stress management should be offered to college students. In addition, programs should be provided to help first-year students adjust to the college environment in order to promote healthy dietary behaviors.

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“…A longer sleep duration was related with a lower BMI in Chinese freshmen [ 15 ]. In university students, being overweight showed a higher odds ratio of less sleep than normal weight students [ 16 ]. In addition, the relationship between sleep duration and BMI depended on age [ 17 , 18 ], and consequently, age should be considered in studies of sleep characteristics and weight status.…”

Section: Introductionmentioning

confidence: 99%

Sleep, Physical Activity, and Diet of Adults during the Second Lockdown of the COVID-19 Pandemic in Greece

Papazisis

Nikolaidis

Trakada

2021

IJERPH

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The aim of the present study was to evaluate the possible correlations between sleep, physical activity, and diet in the general population of Greece during the second lockdown due to COVID-19 pandemic. A web-based questionnaire including 28 items was completed by 494 adults (age 31.5 ± 12.4 years). Half of the participants (49.8%) reported good, 44.1% moderate, and 6.1% bad quality of sleep, whereas 17.2% answered that the quality of sleep improved, 56.5% did not change, and 26.3% worsened compared to a normal week. Compared to normal, sleep duration in lockdown increased by 0.24 h (95% CI; 0.13, 0.35; p < 0.001, d = 0.198). More under-weight (32.4%) and obese (34.1%) respondents reported worsened quality of sleep in lockdown compared with normal (25.6%) and overweight participants (22.7%) (p = 0.006, Cramer’s φ = 0.191). A small effect for BMI group on sleep duration was observed (p = 0.011, η2 = 0.023), where overweight and obese slept less (–0.44 h and –0.66 h, respectively) than normal weight participants. Subjects with the highest percentage of increased food consumption reported decreased sleep duration (p = 0.012) and worsened sleep quality (p = 0.003). Compared with a normal week, physical activity of a high and moderate intensity decreased for 43.0% and 37.0% of participants, did not change in 32.9% and 36.1% of participants, and increased in 24.1% 26.9%, respectively, whereas walking time decreased in 31.3%, did not change in 27.3%, and increased in 41.5% of participants. Increased high and moderate intensity physical activity was related with an improvement in sleep quality (p < 0.001). Those with decreasing walking time reported the highest percentage of decreased sleep quality (p = 0.006) and worsened sleep quality (p = 0.016). In conclusion, both quality and quantity of sleep were impaired during the second lockdown and the observed changes were associated with diet and physical activity.

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Relationship between sleep and obesity among U.S. and South Korean college students

Cited by 55 publications

References 55 publications

Health Behaviors of Higher Education Students from 7 Countries: Poorer Sleep Quality during the COVID-19 Pandemic Predicts Higher Dietary Risk

Health Behaviors of Higher Education Students from 7 Countries: Poorer Sleep Quality during the COVID-19 Pandemic Predicts Higher Dietary Risk

Impact of Stress Levels on Eating Behaviors among College Students

Sleep, Physical Activity, and Diet of Adults during the Second Lockdown of the COVID-19 Pandemic in Greece

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