Chronotype, Sleep, and Depressive Symptoms Among Chinese College Students: A Cross-Sectional Study

Li, Tingting; Xie, Yang; Tao, Shuman; Yang, Young Il; Xu, Hang; Zou, Liwei; Tao, Fangbiao; Wu, Xiaoyan

doi:10.3389/fneur.2020.592825

Cited by 33 publications

(22 citation statements)

References 49 publications

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“…Therefore, the healthier group, M-types were recognized as the control group. 30 , 31 All statistical tests were two-sided and significance was set at p <0.05.…”

Section: Methodsmentioning

confidence: 99%

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Associations of Sleep Insufficiency and Chronotype with Inflammatory Cytokines in College Students

Zhai¹,

Tao²,

Wu³

et al. 2021

NSS

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Purpose Sleep insufficiency and circadian rhythm disturbances in college students have become prominent. Current findings show that sleep insufficiency is closely related to inflammation. Studies on the correlation between chronotype and inflammatory factors are still lacking. Therefore, this research intended to examine the relationships between sleep duration, chronotype and inflammatory cytokines in young adults, and to estimate the correlation between chronotype and inflammatory cytokines stratified by sleep duration. Patients and Methods We conducted a cross-sectional study in April and May 2019. Participants were recruited from two colleges located in central China. The Pittsburgh Sleep Quality Index (PSQI) and the Morning and Evening Questionnaire-5 (MEQ-5) were administered to assess sleep duration and chronotype. Sleep duration less than 7 hours was defined as insufficient sleep. Fasting venous blood was collected to measure plasma levels of inflammatory markers including IL-1β, IL-6, TNF-α and IL-10. Results A total of 723 participants were included in this study, with a mean age of 18.68 years (standard deviation=0.99). After adjusting for confounding factors, the results of generalized linear model showed that sleep insufficiency was positively correlated with IL-1β, TNF-α and IL-10; and evening-types (E-types) were positively associated with the levels of IL-1β and IL-6 ( p <0.05). Compared to the control group (sleep sufficiency and M-types), there were positive interaction effects of sleep insufficiency and neutral-types (N-types) on the levels of IL-1β, IL-6, TNF-α and IL-10 ( p <0.05). The hierarchical regression model showed that N-types and E-types were positively correlated to the levels of IL-1β, IL-6, TNF-α and IL-10 among college students with sleep insufficiency ( p <0.05). Conclusion The levels of inflammatory markers were higher among college students with sleep insufficiency and E-types. N-types and E-types were positively correlated with IL-1β, IL-6, TNF-α and IL-10 among college students with sleep insufficiency.

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“…Therefore, the healthier group, M-types were recognized as the control group. 30 , 31 All statistical tests were two-sided and significance was set at p <0.05.…”

Section: Methodsmentioning

confidence: 99%

“…Therefore, the healthier group, M-types were recognized as the control group. 30,31 All statistical tests were two-sided and significance was set at p<0.05. The interaction effects of sleep duration and chronotype on inflammatory cytokines are shown in Table 2.…”

Section: Statistical Analysesmentioning

confidence: 99%

Associations of Sleep Insufficiency and Chronotype with Inflammatory Cytokines in College Students

Zhai¹,

Tao²,

Wu³

et al. 2021

NSS

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“…M-types have been suggested to be more conscientious, agreeable, and achievement-oriented. In contrast, E-types have been indicated to be slightly more extroverted, exhibit neurotic traits, and are more disposed to mental or psychiatric, mood, personality disturbances, and eating disorders [26][27][28][29][30][31][32][33].…”

Section: Introductionmentioning

confidence: 99%

Biological Rhythm and Chronotype: New Perspectives in Health

et al. 2021

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The circadian rhythm plays a fundamental role in regulating biological functions, including sleep–wake preference, body temperature, hormonal secretion, food intake, and cognitive and physical performance. Alterations in circadian rhythm can lead to chronic disease and impaired sleep. The circadian rhythmicity in human beings is represented by a complex phenotype. Indeed, over a 24-h period, a person’s preferred time to be more active or to sleep can be expressed in the concept of morningness–eveningness. Three chronotypes are distinguished: Morning, Neither, and Evening-types. Interindividual differences in chronotypes need to be considered to reduce the negative effects of circadian disruptions on health. In the present review, we examine the bi-directional influences of the rest–activity circadian rhythm and sleep–wake cycle in chronic pathologies and disorders. We analyze the concept and the main characteristics of the three chronotypes.

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“…[21] On the other hand, a study of 1,179 Chinese university students found an association of moderate to severe depressive symptoms with poor quality sleep in the three chronotypes analyzed. [22] This suggests that sleep disorders are not only an outcome of depressive symptoms but may also predict such symptoms, a fact confirmed in studies with young adults. [21,22] The researchers explain that college students often give up sleep time and leisure activities to attend academic tasks (work or conducting internet research) and make nighttime use of the computer and other electronic media.…”

Section: Discussionmentioning

confidence: 81%

“…[22] This suggests that sleep disorders are not only an outcome of depressive symptoms but may also predict such symptoms, a fact confirmed in studies with young adults. [21,22] The researchers explain that college students often give up sleep time and leisure activities to attend academic tasks (work or conducting internet research) and make nighttime use of the computer and other electronic media. This makes sleep times irregular and sleep time insufficient, which reduces sleep quality, which increases the chance of depressive symptoms in this population.…”

Section: Discussionmentioning

confidence: 81%

How do the relationships among health phenomena explain the nursing students’ quality of life?

Silva

Costa²,

Heitkemper³

et al. 2021

JNEP

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Background and objective: To know the direct relationships between stress, sleep quality, depressive symptoms, resiliency, and quality of life of nursing students. Less is known about how the simultaneous relationships between these variables may explain the nursing students’ quality of life remains unclear. We assessed how the simultaneous causal relationships among stress, depressive symptoms, sleep quality, and resilience explain the nursing students’ quality of life one year after starting a nursing degree program.Methods: This was a one-year longitudinal study. Data were gathered with validated tools from first university-year nursing students enrolled in two public Brazilian universities at the beginning (n = 117) and end (n = 100) of March 2016. The latent variable analysis- a complement of the R statistical package- was used to estimate the Structural Equation Modelling.Results: The final model showed good fitness and residues quality. Stress decreased sleep quality and increased the intensity of the depressive symptoms. Both of these, directly and indirectly, reduced the quality of life. Resiliency decreased stress levels and depressive symptoms and improved sleep quality.Conclusions: The academic environment has the potential for illnesses, impacting the quality of life. On other hand, resiliency plays a protective role on nursing students by reducing stress and its negative effects. Education institutions need to rethink their curricular elements, promote resilience and create actions to promote students’ health.

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Chronotype, Sleep, and Depressive Symptoms Among Chinese College Students: A Cross-Sectional Study

Cited by 33 publications

References 49 publications

Associations of Sleep Insufficiency and Chronotype with Inflammatory Cytokines in College Students

Associations of Sleep Insufficiency and Chronotype with Inflammatory Cytokines in College Students

Biological Rhythm and Chronotype: New Perspectives in Health

How do the relationships among health phenomena explain the nursing students’ quality of life?

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