Short sleep duration and extremely delayed chronotypes in uruguayan youth: the role of school start times and social constraints
During adolescence, biological, psychosocial, and contextual factors converge in a “perfect storm” and have been put forward to explain the delay in chronotype observed at this age and the prevalence of disrupted sleep. This study provides evidence to support that chronotype and sleep patterns (part...
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| Άλλοι συγγραφείς: | , , |
| Μορφή: | article |
| Γλώσσα: | Αγγλικά |
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2020
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| Διαθέσιμο Online: | https://hdl.handle.net/20.500.12008/33461 |
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| _version_ | 1868890154609934336 |
|---|---|
| author | Estevan Debat, Ignacio Miguel |
| author2 | Silva Barbato, Ana Celia Vetter, Céline Tassino, Bettina |
| author2_role | author author author |
| author_browse | Estevan Debat, Ignacio Miguel Silva Barbato, Ana Celia Tassino, Bettina Vetter, Céline |
| author_facet | Estevan Debat, Ignacio Miguel Silva Barbato, Ana Celia Vetter, Céline Tassino, Bettina |
| author_role | author |
| collection | COLIBRI |
| dc.contributor.none.fl_str_mv | Estevan Debat Ignacio Miguel, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Biología. Silva Barbato Ana Celia, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Biología. Vetter Céline Tassino Bettina, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Biología. |
| dc.creator.none.fl_str_mv | Estevan Debat, Ignacio Miguel Silva Barbato, Ana Celia Vetter, Céline Tassino, Bettina |
| dc.date.none.fl_str_mv | 2020 2022-08-31T15:01:18Z 2022-08-31T15:01:18Z |
| dc.format.none.fl_str_mv | 14 h. application/pdf |
| dc.identifier.none.fl_str_mv | Estevan Debat, I, Silva Barbato, A, Vetter, C [y otro autor]. "Short sleep duration and extremely delayed chronotypes in uruguayan youth: the role of school start times and social constraints". Journal of Biological Rhythms. [en línea] 2020, 35(4): 391-404.14 h. DOI: 10.1177/0748730420927601 1552-4531 https://hdl.handle.net/20.500.12008/33461 10.1177/0748730420927601 |
| dc.language.none.fl_str_mv | en eng |
| dc.publisher.none.fl_str_mv | Sage |
| dc.relation.none.fl_str_mv | Journal of Biological Rhythms, 2020, 35(4): 391-404 |
| dc.rights.none.fl_str_mv | info:eu-repo/semantics/openAccess Licencia Creative Commons Atribución - No Comercial - Sin Derivadas (CC - By-NC-ND 4.0) |
| dc.source.none.fl_str_mv | reponame:COLIBRI instname:Universidad de la República instacron:Universidad de la República |
| dc.subject.none.fl_str_mv | Adolescence Mid-sleep point Achool shift Sleep deficit Sleep pattern |
| dc.title.none.fl_str_mv | Short sleep duration and extremely delayed chronotypes in uruguayan youth: the role of school start times and social constraints |
| dc.type.none.fl_str_mv | Artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
| description | During adolescence, biological, psychosocial, and contextual factors converge in a “perfect storm” and have been put forward to explain the delay in chronotype observed at this age and the prevalence of disrupted sleep. This study provides evidence to support that chronotype and sleep patterns (particularly sleep duration) are socially constrained and to identify novel significant social predictors. Uruguayan public school activities are arranged in up to 4 shifts, creating a natural experiment to examine the effect of school timing on questionnaire-based assessments of sleep and chronotype. In this study, 268 high school students (15-18 years old) who attended school either on morning (0730 to 1130 h) or afternoon shifts (1130 h to 1530 h) responded to an adapted School Sleep Habits Survey. Students attending afternoon shifts had later chronotypes (a 1.5-h later midpoint of sleep on free days adjusted for sleep debt) than those attending the morning shift. Besides shift, evening social activities (including dinner time) were further identified as key predictors of late chronotypes, whereas age and gender were not. Sleep on school days was overall advanced and reduced with respect to weekends, and these effects were stronger in morning-shift students. Weekend sleep duration was similar between shifts, which probably caused the prevalence of reduced sleep durations (average weekly sleep duration, SDweek <8 h) to be higher in morning-shift students (almost 80%) than in afternoon-shift ones (34%). Reduced sleep duration was significantly higher in morning-shift students. In addition, age, chronotype, and dinner time became relevant determinants of sleep deficit only in the morning-shift students. Besides the important social constraint of early school start time, this is the first study to confirm the significance of other types of social pressures on both adolescents’ chronotype and sleep deficit, which can be useful as potential new targets for effective policies to protect adolescent sleep. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | anni_a42a72048df0f81a3ef52b613ccacfbb |
| identifier_str_mv | Estevan Debat, I, Silva Barbato, A, Vetter, C [y otro autor]. "Short sleep duration and extremely delayed chronotypes in uruguayan youth: the role of school start times and social constraints". Journal of Biological Rhythms. [en línea] 2020, 35(4): 391-404.14 h. DOI: 10.1177/0748730420927601 1552-4531 10.1177/0748730420927601 |
| instacron_str | Universidad de la República |
| institution | Universidad de la República |
| instname_str | Universidad de la República |
| language | eng |
| language_invalid_str_mv | en |
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| network_name_str | oai-lr-anni |
| oai_identifier_str | oai:colibri.udelar.edu.uy:20.500.12008/33461 |
| publishDate | 2020 |
| publishDateSort | 2020 |
| publisher.none.fl_str_mv | Sage |
| reponame_str | COLIBRI |
| repository.mail.fl_str_mv | |
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| rights_invalid_str_mv | Licencia Creative Commons Atribución - No Comercial - Sin Derivadas (CC - By-NC-ND 4.0) |
| spelling | Short sleep duration and extremely delayed chronotypes in uruguayan youth: the role of school start times and social constraintsEstevan Debat, Ignacio MiguelSilva Barbato, Ana CeliaVetter, CélineTassino, BettinaAdolescenceMid-sleep pointAchool shiftSleep deficitSleep patternDuring adolescence, biological, psychosocial, and contextual factors converge in a “perfect storm” and have been put forward to explain the delay in chronotype observed at this age and the prevalence of disrupted sleep. This study provides evidence to support that chronotype and sleep patterns (particularly sleep duration) are socially constrained and to identify novel significant social predictors. Uruguayan public school activities are arranged in up to 4 shifts, creating a natural experiment to examine the effect of school timing on questionnaire-based assessments of sleep and chronotype. In this study, 268 high school students (15-18 years old) who attended school either on morning (0730 to 1130 h) or afternoon shifts (1130 h to 1530 h) responded to an adapted School Sleep Habits Survey. Students attending afternoon shifts had later chronotypes (a 1.5-h later midpoint of sleep on free days adjusted for sleep debt) than those attending the morning shift. Besides shift, evening social activities (including dinner time) were further identified as key predictors of late chronotypes, whereas age and gender were not. Sleep on school days was overall advanced and reduced with respect to weekends, and these effects were stronger in morning-shift students. Weekend sleep duration was similar between shifts, which probably caused the prevalence of reduced sleep durations (average weekly sleep duration, SDweek <8 h) to be higher in morning-shift students (almost 80%) than in afternoon-shift ones (34%). Reduced sleep duration was significantly higher in morning-shift students. In addition, age, chronotype, and dinner time became relevant determinants of sleep deficit only in the morning-shift students. Besides the important social constraint of early school start time, this is the first study to confirm the significance of other types of social pressures on both adolescents’ chronotype and sleep deficit, which can be useful as potential new targets for effective policies to protect adolescent sleep.ANII: POS_NAC_2015_1_10964SageEstevan Debat Ignacio Miguel, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Biología.Silva Barbato Ana Celia, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Biología.Vetter CélineTassino Bettina, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Biología.2022-08-31T15:01:18Z2022-08-31T15:01:18Z2020Artículoinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion14 h.application/pdfEstevan Debat, I, Silva Barbato, A, Vetter, C [y otro autor]. "Short sleep duration and extremely delayed chronotypes in uruguayan youth: the role of school start times and social constraints". Journal of Biological Rhythms. [en línea] 2020, 35(4): 391-404.14 h. DOI: 10.1177/07487304209276011552-4531https://hdl.handle.net/20.500.12008/3346110.1177/0748730420927601reponame:COLIBRIinstname:Universidad de la Repúblicainstacron:Universidad de la RepúblicaenengJournal of Biological Rhythms, 2020, 35(4): 391-404Las obras depositadas en el Repositorio se rigen por la Ordenanza de los Derechos de la Propiedad Intelectual de la Universidad de la República.(Res. Nº 91 de C.D.C. de 8/III/1994 – D.O. 7/IV/1994) y por la Ordenanza del Repositorio Abierto de la Universidad de la República (Res. Nº 16 de C.D.C. de 07/10/2014)info:eu-repo/semantics/openAccessLicencia Creative Commons Atribución - No Comercial - Sin Derivadas (CC - By-NC-ND 4.0)oai:colibri.udelar.edu.uy:20.500.12008/334612026-04-14T10:09:56Z |
| spellingShingle | Short sleep duration and extremely delayed chronotypes in uruguayan youth: the role of school start times and social constraints Estevan Debat, Ignacio Miguel Adolescence Mid-sleep point Achool shift Sleep deficit Sleep pattern |
| status_str | publishedVersion |
| title | Short sleep duration and extremely delayed chronotypes in uruguayan youth: the role of school start times and social constraints |
| title_full | Short sleep duration and extremely delayed chronotypes in uruguayan youth: the role of school start times and social constraints |
| title_fullStr | Short sleep duration and extremely delayed chronotypes in uruguayan youth: the role of school start times and social constraints |
| title_full_unstemmed | Short sleep duration and extremely delayed chronotypes in uruguayan youth: the role of school start times and social constraints |
| title_short | Short sleep duration and extremely delayed chronotypes in uruguayan youth: the role of school start times and social constraints |
| title_sort | Short sleep duration and extremely delayed chronotypes in uruguayan youth: the role of school start times and social constraints |
| topic | Adolescence Mid-sleep point Achool shift Sleep deficit Sleep pattern |
| url | https://hdl.handle.net/20.500.12008/33461 |