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Validation of the Portuguese variant of the Munich Chronotype Questionnaire (MCTQPT)

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dc.contributor.authorReis, Cátia
dc.contributor.authorMadeira, Sara Alexandra Gamboa
dc.contributor.authorLopes, Luísa
dc.contributor.authorPaiva, Teresa
dc.contributor.authorRoenneberg, Till
dc.date.accessioned2020-07-21T12:45:51Z
dc.date.available2020-07-21T12:45:51Z
dc.date.issued2020
dc.descriptionCopyright © 2020 Reis, Madeira, Lopes, Paiva and Roenneberg. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.pt_PT
dc.description.abstractIntroduction: Differences in the manner circadian clocks entrain to the 24-h day are expressions of different chronotypes that can range from extreme early to extreme late, from proverbial larks to owls. The Morningness Eveningness Questionnaire (MEQ) was one of the first to assess daily preference based on subjective self-assessment – a psychological construct. The later developed Munich Chronotype Questionnaire (MCTQ) uses instead the actual sleep timing to assess chronotype. It calculates the midsleep point, halfway between onset and offset on work-free days (MSF), which is then corrected for potential oversleep on free days compensating for sleep debt accumulated over the workweek (MSFsc). MSFsc is expressed in local time and is thought to be a proxy for “phase of entrainment” of the circadian clock. The MCTQ-derived chronotype is therefore a biological construct. In the present report, we validate the Portuguese variant (MCTQPT) of the MCTQ. Portugal is of particular interest, since it is thought to consist of especially late chronotypes. Methods: We have used three methods to assess the timing of daily behavior, namely, the chronotype (MCTQ), the daily preference (rMEQ), and a simple self-assessment (time-of-day type). A total of 80 healthy adults living in Portugal, with age and sex distributed according to the Portuguese population, were recruited. We analyzed 4 weeks of continuous records of actimetry data to validate the MCTQPT and used the rMEQ to compare between a biological chronotype (sleep timing) and a psychological chronotype (daily preference). MCTQ variables were analyzed by descriptive statistics; correspondence between measurements was done by Spearman correlations or cross-tabulation; in a subset of 41 individuals, test–retest reliability was assessed. Results: MCTQ-derived variables (MSF, MSW, MSFsc) correlated highly with their counterparts calculated from actimetry (MSW: rho = 0.697; MSF: rho = 0.747; MSFsc: rho = 0.646; all p < 0.001). The MCTQ assessment of the chronotype showed good test–retest reliability (rho = 0.905; p < 0.001). The rMEQ score correlates with MSFsc (rho = −0.695; p < 0.001), and the agreement for the self-assessment with the MSFsc was fair (kw = 0.386; p < 0.001). Conclusion: The Portuguese variant of the MCTQ revealed to be a reliable questionnaire to assess the chronotype for the Portuguese adult population, as previously reported for other countries.pt_PT
dc.description.sponsorshipThis work was supported by the Fundação para a Ciência e Tecnologia (FCT) Ph.D. research Grants PDE/BDE/114584/2016 and PDE/BDE/127787/2016 and the Bial Foundation (135/18).pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationFront. Physiol. 11:795pt_PT
dc.identifier.doi10.3389/fphys.2020.00795pt_PT
dc.identifier.eissn1664-042X
dc.identifier.urihttp://hdl.handle.net/10451/44088
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherFrontiers Mediapt_PT
dc.relationDelayed Sleep/Wake Phae Disorder DSWPD: shifts and synchronisation in phase analysis
dc.relationCircadian misalignment and its associations with health and productivity in blue cofiar workers: a chronotype-based approach
dc.relation.publisherversionhttps://www.frontiersin.org/journals/physiology#pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectPhase of entrainmentpt_PT
dc.subjectMCTQpt_PT
dc.subjectActimetrypt_PT
dc.subjectChronotypept_PT
dc.subjectValidationpt_PT
dc.titleValidation of the Portuguese variant of the Munich Chronotype Questionnaire (MCTQPT)pt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardNumberPDE/BDE/114584/2016
oaire.awardNumberPDE/BDE/127787/2016
oaire.awardTitleDelayed Sleep/Wake Phae Disorder DSWPD: shifts and synchronisation in phase analysis
oaire.awardTitleCircadian misalignment and its associations with health and productivity in blue cofiar workers: a chronotype-based approach
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//PDE%2FBDE%2F114584%2F2016/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/OE/PDE%2FBDE%2F127787%2F2016/PT
oaire.citation.titleFrontiers in Physiologypt_PT
oaire.citation.volume11pt_PT
oaire.fundingStreamOE
person.familyNamePeixinho Reis
person.familyNameGamboa Madeira
person.familyNamePaiva
person.givenNameCátia Cristina
person.givenNameSara
person.givenNameMaria Teresa Aguiar dos Santos
person.identifier988383
person.identifier1465255
person.identifier.ciencia-idC817-4B30-902F
person.identifier.ciencia-idD617-DADD-EDB9
person.identifier.ciencia-id7B10-224A-DB1D
person.identifier.orcid0000-0001-6585-3993
person.identifier.orcid0000-0003-0764-571X
person.identifier.orcid0000-0002-7937-7841
person.identifier.scopus-author-id7005950248
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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