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Feng S, Liu R, Tomar A, Ma P. Sex Differences in the Associations of mental Health, Suicidality, Screentime, and Sleep: A Mediation Effect Analysis of Sleep Using Youth Risk Behavioral Surveillance Survey 2021. Psychol Rep 2024:332941241277096. [PMID: 39180376 DOI: 10.1177/00332941241277096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/26/2024]
Abstract
Objective: This study was conducted to explore the sex differences in the direct and indirect associations among mental health/suicidality, sleep, and screen time. Methods: Using the 2021 Youth Risk Behavior Survey (YRBS) data, 9408 participants were included in the analyses. The associations of endogenous variables (mental health and suicidality), exogenous variable (screen time), mediator (sleep), and covariates (demographic features and risky behaviors) were analyzed using the Structural Equation Model and "medsem" package, as well as logistic regression and bootstrapping methods. To explore the sex differences in the mediation effect, the Likelihood Ratio Test was used for the multiple-group analysis to compare the unconstrained model with the mediation path-constrained model. Results: Screen time had a significant negative association with sleep duration (female: β = -.09, p < .001; male: β = -.04, p < .001), positive relations to mental health problems (female: β = .10, p < .001; male: β = .12; p < .001), and suicidality (female: OR: 1.07, 95% CI: 1.02-1.13; male: OR: 1.06, 95% CI: 1.01-1.23). Sleep duration is negatively associated with mental health problems (female: β = -.16, p < .001; male: β = -.14; p < .001) and negatively associated with the likelihood of suicidality (female: .89, 95% CI: .85-.94; male: OR: .84, 95% CI: .79-.90). Furthermore, female adolescents had higher frequencies in mental health problems, higher odds ratio in suicidality, shorter sleep duration, and bigger mediation effects of sleep, compared to their male counterparts. Conclusion: Mental health and suicidality were affected differently by screen time and sleep between female and male adolescents. Future research may continue to explore sex differences and their underlying reasons.
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Affiliation(s)
- Shuo Feng
- Department of Health Behavior, School of Public Health, Texas A&M University, College Station, Texas, USA
| | - Renming Liu
- Department of Educational Psychology, Baylor University, Waco, TX, USA
| | - Aditi Tomar
- Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA
| | - Ping Ma
- Department of Health Behavior, School of Public Health, Texas A&M University, College Station, Texas, USA
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Lyu J, Jin S, Ji C, Yan R, Feng C, Rozelle S, Wang H. The Connection between Sleep Patterns and Mental Health: Insights from Rural Chinese Students. Healthcare (Basel) 2024; 12:1507. [PMID: 39120210 PMCID: PMC11311341 DOI: 10.3390/healthcare12151507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 06/10/2024] [Accepted: 07/25/2024] [Indexed: 08/10/2024] Open
Abstract
BACKGROUND The association between sleep patterns and young students' mental health, which is crucial for their development, remains understudied in rural China. Therefore, the relationship between sleep patterns and mental health among primary and junior high school students in rural China was examined. METHOD A total of 1592 primary and junior high school students from rural areas of Gansu Province were surveyed, and the Depression Anxiety and Stress Scale (DASS) was utilized to assess mental health, alongside self-reported data on their daily sleep patterns. RESULTS Significant sleep inadequacies were identified: 28% of students received less than 8 h of sleep on weekdays, and 19% went to bed later than recommended. On weekends, 38% of students had delayed bedtimes, though only 7.2% received less than 8 h of sleep. Notably, a "U-shaped" relationship was uncovered between sleep duration and mental health for students on weekends, with optimal mental health correlated with receiving 10-11 h of sleep, while both shorter and longer sleep durations on weekends worsened outcomes. This pattern is absent on weekdays. Additionally, adequate sleep and an earlier bedtime was linked to a 6-8% decrease in mental health risks. CONCLUSIONS These findings provide valuable insights for policymakers seeking to enhance student mental well-being in rural settings, emphasizing the importance of implementing measures that promote balanced sleep habits among young students.
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Affiliation(s)
- Jiayang Lyu
- China Academy for Rural Development (CARD), Department of Agricultural Economics and Management, School of Public Affairs, Zhejiang University, 866 Yuhangtang Rd., Hangzhou 310058, China; (J.L.)
- Stanford Center on China’s Economy and Institutions, Freeman Spogli Institute for International Studies, Stanford University, Stanford, CA 94305, USA
| | - Songqing Jin
- Department of Agricultural, Food and Resource Economics, Michigan State University, 220 Trowbridge Rd., East Lansing, MI 48824, USA
| | - Chen Ji
- China Academy for Rural Development (CARD), Department of Agricultural Economics and Management, School of Public Affairs, Zhejiang University, 866 Yuhangtang Rd., Hangzhou 310058, China; (J.L.)
| | - Ru Yan
- China Academy for Rural Development (CARD), Department of Agricultural Economics and Management, School of Public Affairs, Zhejiang University, 866 Yuhangtang Rd., Hangzhou 310058, China; (J.L.)
- Stanford Center on China’s Economy and Institutions, Freeman Spogli Institute for International Studies, Stanford University, Stanford, CA 94305, USA
| | - Cindy Feng
- Stanford Center on China’s Economy and Institutions, Freeman Spogli Institute for International Studies, Stanford University, Stanford, CA 94305, USA
| | - Scott Rozelle
- Stanford Center on China’s Economy and Institutions, Freeman Spogli Institute for International Studies, Stanford University, Stanford, CA 94305, USA
- Tsingshan Institute for Advanced Business Studies, Zhejiang University, 866 Yuhangtang Rd., Hangzhou 310058, China
| | - Huan Wang
- Stanford Center on China’s Economy and Institutions, Freeman Spogli Institute for International Studies, Stanford University, Stanford, CA 94305, USA
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Byczynski GE, D'Angiulli A. Frontal P300 asymmetry and congruence judgment: Retroactive switching is impaired during school day mornings in female adolescents. CURRENT RESEARCH IN NEUROBIOLOGY 2024; 6:100128. [PMID: 38577062 PMCID: PMC10990860 DOI: 10.1016/j.crneur.2024.100128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 02/22/2024] [Accepted: 03/07/2024] [Indexed: 04/06/2024] Open
Abstract
Investigating frontal EEG asymmetry as a possible biomarker of cognitive control abilities is especially important in ecological contexts such as school and work. We used a novel approach combining judgment performance and hemispheric frontal event-related potential (ERP) P300 asymmetry (fP3As) to evaluate aspects of cognitive control (i.e., repetition and switching) in adolescent females over a two-week ordinary school period. While undergoing electroencephalographic recording, students performed a word-colour "Stroop-like" congruence judgment task during morning and afternoon sessions, on Mondays and Wednesdays. Proportion of incongruence and congruence trials was 75% and 25%, respectively. ERP analysis revealed larger "novelty" right hemispheric fP3As amplitude for infrequent congruence but equivalent or significantly smaller than left hemispheric fP3As amplitude for frequent incongruence. RTs increased with extent of right fP3As shift. Behaviorally, repeat trial pairs (i.e., congruent followed by congruent, incongruent followed by incongruent) generally did not differ by time or day and were associated with near-ceiling accuracy. In contrast, switch trial pairs (i.e., congruent followed by incongruent, incongruent followed by congruent) in the afternoon were slower and associated with lower accuracy at the expected 75% criterion rate (i.e., judging incongruence by default), dropping significantly below 75% in the mornings. Crucially, compared to afternoon, morning fP3As patterns did not change adaptively with switch trial pairs. Although retroactive switching during congruence judgment was affected at all testing times, we conclude it was most impaired in the mornings of both early and mid school weeks, supporting misalignment between adolescent circadian cycle and school start time. We discuss some implications for optimal learning of adolescents at school.
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Affiliation(s)
- Gabriel E. Byczynski
- Trinity College Institute for Neuroscience, School of Psychology, Trinity College Dublin, Dublin, D02 PN40, Ireland
| | - Amedeo D'Angiulli
- Neuroscience of Cognition and Imagination and Emotion Research Lab, Department of Neuroscience, Carleton University, Ottawa, ON, K1S 5B7, Canada
- Children’s Hospital of Eastern Ontario Research Institute, Ottawa, ON, K1H 8L1, Canada
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González-Treviño IM, Arrona-Palacios A, Núñez-Rocha GM, Jansen EC. Association between self-reported sleep duration and dietary quality in Mexican school-aged children. Appetite 2022; 178:106177. [PMID: 35853522 PMCID: PMC10103144 DOI: 10.1016/j.appet.2022.106177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 06/21/2022] [Accepted: 07/14/2022] [Indexed: 11/22/2022]
Abstract
Short sleep duration has been associated with poor diet quality in school-aged children in multiple populations. However, investigations of sleep and dietary quality in Mexican school-aged children are scarce. The main objective of this work was to assess the association between sleep duration and dietary quality in Mexican school-aged children stratified by sex. The data were collected from 373 (138 girls and 235 boys) elementary school children aged 6-12 years in Monterrey, Nuevo Leon, Mexico. Surveys collected information on general demographic characteristics and self-reported sleep duration. Diet was assessed with 24-h recalls, and dietary quality was calculated by the Healthy Eating Index (HEI-2015). Results indicated that overall mean sleep duration was 8.23 ± 1.06 h. From the total sample, 6.7% slept ≤6 h (not recommended), 55.8% 7-8 h (may be appropriate), and 37.5% ≥ 9 h (recommended). Average total HEI-2015 score was 64.6 (out of possible 100), with boys having lower HEI-2015 scores than girls (57.7 vs 69.4). Moreover, girls and boys with shorter sleep duration (≤6 h compared to ≥ 9 h) had lower HEI-2015 scores (-1.03 [95% CI -2.74, -0.47; p < .01] and -1.78 [95% CI -3.15, -0.86; p < .001], respectively). Regarding the individual components of dietary quality, those with ≤6 h of sleep had lower scores particularly in vegetables, protein sources, added sugars and saturated fats for girls and boys compared to those with ≥9 h. These findings suggest sleep may be an important determinant of dietary practices within the Mexican children.
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Affiliation(s)
| | - Arturo Arrona-Palacios
- Writing Lab, Institute for the Future of Education, Tecnologico de Monterrey, Monterrey, NL, Mexico; Division of Sleep and Circadian Disorders, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA; Division of Sleep Medicine, Harvard Medical School, Boston, MA, USA.
| | | | - Erica C Jansen
- Department of Nutritional Science, University of Michigan School of Public Health, Ann Arbor, MI, USA; Division of Sleep Medicine, Department of Neurology, Michigan Medicine, Ann Arbor, MI, USA.
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Xue B, Xue Y, Zheng X, Shi L, Liang P, Dong F, Xiao S, Zhang J, Qin Z, Xu Y, Ou W, Zhang C. Association of sleep with mental health in Chinese high school students: a cross-sectional study. J Sleep Res 2022; 31:e13697. [PMID: 35879019 DOI: 10.1111/jsr.13697] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 05/16/2022] [Accepted: 06/28/2022] [Indexed: 01/14/2023]
Abstract
Adolescents' sleep problems and their association with mental health is an important public health concern. This study aimed to investigate sleep and mental health status and the association of sleep with mental health in Chinese high school students. Data came from a cross-sectional study in Guangdong province which included 42,077 high school students. Sleep quality and sleep duration were obtained through self-report. The Depression Anxiety and Stress Scale (DASS-21) was used to measure mental health. The association between sleep quality, sleep duration, and mental health was analysed using logistic regression. The prevalence of depression, anxiety, and stress symptoms were 35.27%, 42.32%, and 21.87% in high school students, respectively. And only 17.71% and 34.41% of the high school students had very good sleep quality and ≥8 h sleep duration, respectively. Poorer sleep quality and shorter sleep duration were risk factors for mental health problems in high school students. Compared to high school students with very good sleep quality and ≥8 h sleep duration, the high school students with poor or very poor sleep quality and <6 h sleep duration had the highest risk of depression symptoms (odds ratio [OR] 5.02, 95% confidence interval [CI] 4.40-5.72), anxiety symptoms (OR 6.02, 95% CI5.25-6.89), and stress symptoms (OR 6.12, 95% CI5.30-7.06). Considering the combined association of sleep quality and sleep duration on mental health, it is important not only to ensure that high school students have sufficient sleep duration, but also to improve their sleep quality.
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Affiliation(s)
- Benli Xue
- School of Health Management, Southern Medical University, Guangzhou, China
| | - Yaqing Xue
- School of Health Management, Southern Medical University, Guangzhou, China
| | - Xiao Zheng
- School of Health Management, Southern Medical University, Guangzhou, China
| | - Lei Shi
- School of Health Management, Southern Medical University, Guangzhou, China
| | - Pengyan Liang
- Health Promotion and Education Center of Guangdong Province, Guangzhou, China
| | - Fang Dong
- School of Health Management, Southern Medical University, Guangzhou, China
| | - Shujuan Xiao
- School of Health Management, Southern Medical University, Guangzhou, China
| | - Jiachi Zhang
- School of Health Management, Southern Medical University, Guangzhou, China
| | - Zuguo Qin
- Health Promotion and Education Center of Guangdong Province, Guangzhou, China
| | - Ying Xu
- Department of Education of Guangdong Province, Guangzhou, China
| | - Weiyan Ou
- School of Health Management, Southern Medical University, Guangzhou, China
| | - Chichen Zhang
- School of Health Management, Southern Medical University, Guangzhou, China.,Department of Health Management, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Institute of Health Management, Southern Medical University, Guangzhou, China
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Villalobos K, Ishino FAM, McNeel TS, Williams F. Examining the relationship of sociodemographic factors, neighborhood cohesion and abnormal sleep duration among U.S. foreign-born subpopulations in the National Health Interview Survey. BMC Public Health 2022; 22:1099. [PMID: 35650549 PMCID: PMC9161572 DOI: 10.1186/s12889-022-13523-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 05/23/2022] [Indexed: 11/21/2022] Open
Abstract
Background Limited studies have examined the relationship of neighborhood cohesion and sleep duration between U.S. foreign-born Hispanics/Latinos and non-Hispanics/Latinos. Methods We conducted a multinomial logistic regression using the 2013-2018 National Health Interview Survey on U.S. foreign-born adults ≥18 (N = 27,253). The outcome variable, sleep duration, was categorized as short sleep (≤6 hours), normal sleep (7 to 8 hours), and long sleep (≥9 hours). Neighborhood cohesion was categorized using tertiles (low, medium, high) from self-reported Likert scores. Our model included sociodemographic factors (i.e., age, marital status), socioeconomic status (i.e., education, employment status), health risk behaviors (i.e., body mass index, smoking status, alcohol drinking status), ethnic identity (i.e., Mexican, Puerto Rican, Cuban, Dominican, Central or South American, other/multiple Hispanic/Latino, and non-Hispanic/Latino), and acculturation factors (i.e., years lived in the U.S.; the language of interview). Results Participants reporting low and medium neighborhood cohesion compared to high neighborhood cohesion had 45% (95% confidence interval [CI]:1.33-1.58) and 15% (95%CI:1.05-1.26) increased odds of short sleep (≤6 hours), compared to normal average sleep. Mexican participants had decreased odds of experiencing short sleep (adjusted odds ratio [AOR] = 0.82, 95%CI:0.73-0.92), while Puerto Ricans had increased odds of experiencing short sleep (AOR = 1.25, 95%CI:1.03-1.51) compared to non-Hispanics/Latinos. Conclusion Neighborhood cohesion was associated with increased odds of short sleep duration. Social determinants, acculturation, and behavioral risk factors in the context of neighborhood cohesion are critical to understand U.S. foreign-born Hispanic/Latino sleep duration, as these factors may negatively synergize to exacerbate risk, worsening mental and physical health outcomes.
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Tang Y, Wan Y, Xu S, Zhang S, Hao J, Tao F. Nonlinear relationship between sleep duration and non-suicidal self-injurious behaviour among Chinese adolescents. BMC Psychiatry 2021; 21:521. [PMID: 34674680 PMCID: PMC8532314 DOI: 10.1186/s12888-021-03539-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Accepted: 10/13/2021] [Indexed: 12/01/2022] Open
Abstract
BACKGROUND Previous studies have shown a positive association between sleep deprivation and non-suicidal self-injury (NSSI) among adolescents, but few studies have described the effects of oversleeping and weekend catch-up sleep on NSSI. The present study aimed to explore the nonlinear relationship between sleep duration and NSSI among Chinese adolescents. METHODS Data from China's National Adolescent Health Surveillance for the years 2014 to 2015 were collected from 15,713 students located across four provinces in China. A self-report questionnaire was used to assess sleep duration and 12-month NSSI. Binomial logistic regression models were used to examine the association between NSSI and sleep duration. The locally estimated scatter plot smoothing (LOESS) method was used to explore the associations of total NSSI number with sleep duration, and binomial regression analysis was used to test this relationship. RESULTS About 68.5% of adolescents reported sleeping less than 8 h on weeknights, while 37.8% of adolescents slept more than 10 h per night during weekends. The 12-month prevalence rate of NSSI was 29.4%. Compared to adolescents who reported weekend catch-up sleep of 0-1 h, those who slept < 0 h (adjusted odds ratio [aOR] = 1.38, 95% Confidence Interval [95% CI]: 1.16-1.64) had a higher risk of NSSI. Males who reported ≥3 h of weekend catch-up sleep had significantly increased odds of NSSI (aOR = 1.20, 95%CI: 1.01-1.42). Notably, a positive U-shaped association was observed between the sleep duration and the total NSSI number. CONCLUSIONS The findings reveal a nonlinear relationship between sleep duration and NSSI among Chinese adolescents. Therefore, it is necessary to be vigilant and screen for sleep duration among adolescents in NSSI treatment or prevention.
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Affiliation(s)
- Ying Tang
- grid.186775.a0000 0000 9490 772XDepartment of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032 Anhui China ,MOE Key Laboratory of Population Health Across Life Cycle, No 81 Meishan Road, Hefei, 230032 Anhui China ,NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, No 81 Meishan Road, Hefei, 230032 Anhui China ,grid.186775.a0000 0000 9490 772XAnhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University; No 81 Meishan Road, Hefei, 230032 Anhui China
| | - Yuhui Wan
- grid.186775.a0000 0000 9490 772XDepartment of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032 Anhui China ,NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, No 81 Meishan Road, Hefei, 230032 Anhui China ,grid.186775.a0000 0000 9490 772XAnhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University; No 81 Meishan Road, Hefei, 230032 Anhui China
| | - Shaojun Xu
- grid.186775.a0000 0000 9490 772XDepartment of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032 Anhui China ,grid.186775.a0000 0000 9490 772XAnhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University; No 81 Meishan Road, Hefei, 230032 Anhui China
| | - Shichen Zhang
- grid.186775.a0000 0000 9490 772XDepartment of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032 Anhui China ,MOE Key Laboratory of Population Health Across Life Cycle, No 81 Meishan Road, Hefei, 230032 Anhui China
| | - Jiahu Hao
- grid.186775.a0000 0000 9490 772XDepartment of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032 Anhui China ,MOE Key Laboratory of Population Health Across Life Cycle, No 81 Meishan Road, Hefei, 230032 Anhui China ,grid.186775.a0000 0000 9490 772XAnhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University; No 81 Meishan Road, Hefei, 230032 Anhui China
| | - Fangbiao Tao
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China. .,MOE Key Laboratory of Population Health Across Life Cycle, No 81 Meishan Road, Hefei, 230032, Anhui, China. .,NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, No 81 Meishan Road, Hefei, 230032, Anhui, China. .,Anhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University; No 81 Meishan Road, Hefei, 230032, Anhui, China.
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The role of family meal frequency in common mental disorders in children and adolescents over eight months of follow-up. PLoS One 2021; 16:e0243793. [PMID: 33539371 PMCID: PMC7861406 DOI: 10.1371/journal.pone.0243793] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 11/25/2020] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE This study evaluated the influence of family meal frequency on the occurrence of common mental disorders (CMD) in children and adolescents over eight months of follow-up. DESIGN Data from this longitudinal study were derived from the PAAPAS-Parents, Students, Community Health Agents, and Teachers for Healthy Eating-community trial. CMD were evaluated using the General Health Questionnaire. Frequency of family meals (breakfast and dinner) was categorized as "breakfast and dinner regularly with the family", "at least breakfast or dinner regularly with the family", and "does not have any meal regularly with the family." The effect of family meal frequency on CMD was analyzed using generalized estimation equations with log-binomial models for repeated measures. SETTING This study was conducted in public schools (N = 18) of Duque de Caxias, Rio de Janeiro, Brazil, in 2016. PARTICIPANTS Children (aged 9-11 years) and adolescents (aged 12-17 years) from the fifth and sixth grades (N = 2,743). RESULTS These findings suggested that regular family meals were a protective factor for mental health. The adjusted relative risk of CMD was 0.75 (95% confidence interval = 0.69-0.83) for those who had two family meals regularly and 0.87 (95% confidence interval = 0.77-0.97) for those who had only one regular family meal, compared to students who had no regular family meals. CONCLUSIONS Potential strategies that educate and encourage families about the mental health benefits of eating regular meals together must be explored and implemented.
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Kolomeichuk SN, Randler C, Morozov AV, Gubin DG, Drake CL. Social Jetlag and Excessive Daytime Sleepiness from a Sample of Russian Children and Adolescents. Nat Sci Sleep 2021; 13:729-737. [PMID: 34113200 PMCID: PMC8187033 DOI: 10.2147/nss.s290895] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Accepted: 05/06/2021] [Indexed: 12/21/2022] Open
Abstract
PURPOSE Insufficient nocturnal sleep is a primary source of excessive daytime sleepiness. Most previous research has focused on the disparity between sleep demands and study start times in adolescents. Fewer studies have focused on elementary schoolchildren. We hypothesize that late sleep timing is connected to excessive daytime sleepiness in a sample of Russian children and adolescents. The major goals of our study were to evaluate excessive daytime sleepiness in Russian schoolchildren and adolescents using the Russian version of the Pediatric Daytime Sleepiness Scale (PDSS) and to estimate its relationship with sleep-wake parameters using the Munich Chronotype Questionnaire (MCTQ). MATERIALS AND METHODS Student subjects were from public educational facilities in the Republic of Karelia. They completed both the PDSS and the Munich Chronotype Questionnaire to estimate sleep parameters and chronotype (MSFsc). Five hundred and eleven students provided data for the PDSS and sleep-wake variables, and 479 for the full MCTQ data. RESULTS The overall prevalence of Excessive Daytime Sleepiness (EDS) in our sample was 18%. The total PDSS score was inversely correlated with sleep length on school nights and was independent of respondents' sex. Higher PDSS scores were associated with later bedtimes on school days and free days, and shorter sleep duration on school days. Late chronotype and more pronounced social jetlag were both positively correlated with high PDSS scores. A negative correlation was found between chronotype and the duration of the sleep period on weekdays (p < 0.001) and a positive correlation was found on weekends (p < 0.001). Longer average sleep duration was positively related to less daytime sleepiness. CONCLUSION This study suggests that excessive daytime sleepiness is chronotype-dependent. School start times could be shifted to a later hour to prolong sleep and reduce EDS.
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Affiliation(s)
- Sergey N Kolomeichuk
- Laboratory of Genetics, Institute of Biology, Karelian Science Centre, Russian Academy of Sciences, Petrozavodsk, Russia.,Tyumen State Medical University, Tyumen, Russia
| | - Christoph Randler
- University of Tuebingen, Department of Biology, Tübingen, D-72076, Germany
| | - Artem V Morozov
- Laboratory of Ecological Physiology of Animals, Institute of Biology, Karelian Science Centre, Russian Academy of Sciences, Petrozavodsk, Russia
| | - Denis G Gubin
- Tyumen State Medical University, Tyumen, Russia.,Tyumen Cardiology Research Center, Tomsk National Research Medical Center, Russian Academy of Science, Tomsk, Russia
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