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The Impact of Sleep on Haematological Parameters in Firefighters

2024-06-26Research article Open access
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datacite.subject.fosCiências Médicas::Ciências da Saúde
datacite.subject.fosCiências Naturais::Ciências Biológicas
datacite.subject.sdg03:Saúde de Qualidade
dc.contributor.authorAlves, Sara
dc.contributor.authorSilva, Francisca
dc.contributor.authorEsteves, Filipa
dc.contributor.authorCosta, Solange
dc.contributor.authorSlezakova, Klara
dc.contributor.authorAlves, Maria
dc.contributor.authorPereira, Maria
dc.contributor.authorTeixeira, João Paulo
dc.contributor.authorMorais, Simone
dc.contributor.authorFernandes, Adília
dc.contributor.authorQueiroga, Felisbina
dc.contributor.authorVaz, Josiana
dc.date.accessioned2025-04-03T15:44:16Z
dc.date.available2025-04-03T15:44:16Z
dc.date.issued2024-06-26
dc.description(This article belongs to the Special Issue Shift-Work and the Individual II)
dc.description.abstractSleep is a vital process that impacts biological functions such as cell renewal, bone regeneration, and immune system support. Disrupted sleep can interrupt erythropoiesis, leading to fewer red blood cells, reduced haemoglobin concentration, and decreased haematocrit levels, potentially contributing to haematological disorders. This is particularly concerning for shift workers for example firefighters. While previous studies have explored sleep’s adverse effects on various professions, research specific to firefighters is limited. This study investigates the relationship between sleep quality and haematological parameters among firefighters in Northeast Portugal. From a sample of 201 firefighters, variations in red blood cells, haemoglobin, and haematocrit values were linked to sleep quality. The study utilised non-parametric tests (Wilcoxon-Mann-Whitney, Spearman’s correlation) to explore the connection between sleep quality and haematological profile. The impact of covariates on haematological parameters was assessed using non-parametric ANCOVA (Quade’s). A multiple regression analysis was employed to further understand how sleep quality and various confounding variables impact haematological levels. Findings suggest a negative link between sleep quality and haematological levels, meaning that as sleep quality deteriorates, there is a tendency for haematological levels to decrease, as indicated by Spearman’s correlation (rRBC = −0.157, pRBC = 0.026; rHb = −0.158, pHb = 0.025; rHCT = −0.175, pHCT = 0.013). As observed in scientific literature, the correlation found suggests a possible inhibition of erythropoiesis, the process responsible for red blood cell production. Despite firefighters presenting a haematological profile within the reference range (RBC: 5.1 × 106/mm3 (SD ± 0.4), Hb: 15.6 g/dL (SD ± 1.3), 47% (SD ± 1.0), there is already an observable trend towards lower levels. The analysis of co-variables did not reveal a significant impact of sleep quality on haematological levels. In conclusion, this study underscores the importance of sleep quality in determining haematological parameters among firefighters. Future research should investigate the underlying mechanisms and long-term implications of poor sleep quality on firefighter health. Exploring interventions to enhance sleep quality is vital for evidence-based strategies promoting firefighter well-being.eng
dc.description.sponsorshipThis research was funded by the Portuguese Foundation for Science and Technology (FCT) through the project PCIF/SSO/0017/2018 and through National funds via FCT/MCTES (PIDDAC), CIMO (UIDB/00690/2020 and UIDP/00690/2020), and SusTEC (LA/P/0007/2020). http://doi.org/10.54499/PCIF/SSO/0017/2018.
dc.identifier.citationClocks Sleep. 2024 Jun 26;6(3):291-311. doi: 10.3390/clockssleep6030021.
dc.identifier.doi10.3390/clockssleep6030021
dc.identifier.issn2624-5175
dc.identifier.pmid39051311
dc.identifier.urihttp://hdl.handle.net/10400.18/10475
dc.language.isoeng
dc.peerreviewedyes
dc.publisherMDPI
dc.relationA panel of (bio)markers for the surveillance of firefighter's health and safety.
dc.relationMountain Research Center
dc.relationMountain Research Center
dc.relationAssociate Laboratory for Sustainability and Tecnology in Mountain Regions
dc.relationUIDP/00690/2020
dc.relationLA/P/0007/2020
dc.relation.hasversionhttps://www.mdpi.com/2624-5175/6/3/21
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectHaemoglobin
dc.subjectHaematocrit
dc.subjectPSQI
dc.subjectCircadian Rhythms
dc.subjectAr e Saúde Ocupacional
dc.titleThe Impact of Sleep on Haematological Parameters in Firefighterseng
dc.typeresearch article
dspace.entity.typePublication
oaire.awardTitleA panel of (bio)markers for the surveillance of firefighter's health and safety.
oaire.awardTitleMountain Research Center
oaire.awardTitleMountain Research Center
oaire.awardTitleAssociate Laboratory for Sustainability and Tecnology in Mountain Regions
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/Concurso de Projetos de Investigação Científica e Desenvolvimento Tecnológico no Âmbito da Prevenção e Combate a Incêndios Florestais - 2018/PCIF%2FSSO%2F0017%2F2018/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00690%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F00690%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0007%2F2020/PT
oaire.citation.endPage311
oaire.citation.issue3
oaire.citation.startPage291
oaire.citation.titleClocks & Sleep
oaire.citation.volume62
oaire.fundingStreamConcurso de Projetos de Investigação Científica e Desenvolvimento Tecnológico no Âmbito da Prevenção e Combate a Incêndios Florestais - 2018
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
project.funder.identifierhttp://doi.org/10.13039/501100001871
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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
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
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