Possible sleep bruxism and hair cortisol in children: A birth cohort study
Laís Anschau Pauli
Graduate Program in Dentistry, Federal University of Pelotas, Pelotas, Brazil
Contribution: Conceptualization, Methodology, Formal analysis, Writing - original draft, Writing - review & editing
Search for more papers by this authorJoseph Murray
Graduate Program in Epidemiology, Federal University of Pelotas, Pelotas, Brazil
Contribution: Conceptualization, Methodology, Data curation, Funding acquisition, Writing - review & editing, Project administration, Investigation
Search for more papers by this authorLuciana Tovo-Rodrigues
Graduate Program in Epidemiology, Federal University of Pelotas, Pelotas, Brazil
Contribution: Conceptualization, Methodology, Data curation, Project administration, Writing - review & editing, Funding acquisition, Investigation
Search for more papers by this authorMarcos Britto Correa
Graduate Program in Dentistry, Federal University of Pelotas, Pelotas, Brazil
Contribution: Conceptualization, Methodology, Investigation, Writing - review & editing
Search for more papers by this authorFernando Barros
Graduate Program in Epidemiology, Federal University of Pelotas, Pelotas, Brazil
Contribution: Conceptualization, Investigation, Methodology, Writing - review & editing
Search for more papers by this authorIsabel Oliveira de Oliveira
Graduate Program in Epidemiology, Federal University of Pelotas, Pelotas, Brazil
Contribution: Conceptualization, Investigation, Methodology, Writing - review & editing
Search for more papers by this authorMarlos Rodrigues Domingues
Graduate Program in Physical Education, Federal University of Pelotas, Pelotas, Brazil
Contribution: Writing - review & editing, Conceptualization, Methodology, Investigation
Search for more papers by this authorFlavio Fernando Demarco
Graduate Programs in Dentistry and Epidemiology, Federal University of Pelotas, Pelotas, Brazil
Contribution: Conceptualization, Methodology, Investigation, Writing - review & editing, Funding acquisition
Search for more papers by this authorCorresponding Author
Marília Leão Goettems
Graduate Program in Dentistry, Federal University of Pelotas, Pelotas, Brazil
Correspondence
Marília Leão Goettems, Federal University of Pelotas, Graduate Program in Dentistry, Pelotas, RS, Brazil.
Email: [email protected]
Contribution: Conceptualization, Methodology, Writing - original draft, Writing - review & editing, Formal analysis, Investigation
Search for more papers by this authorLaís Anschau Pauli
Graduate Program in Dentistry, Federal University of Pelotas, Pelotas, Brazil
Contribution: Conceptualization, Methodology, Formal analysis, Writing - original draft, Writing - review & editing
Search for more papers by this authorJoseph Murray
Graduate Program in Epidemiology, Federal University of Pelotas, Pelotas, Brazil
Contribution: Conceptualization, Methodology, Data curation, Funding acquisition, Writing - review & editing, Project administration, Investigation
Search for more papers by this authorLuciana Tovo-Rodrigues
Graduate Program in Epidemiology, Federal University of Pelotas, Pelotas, Brazil
Contribution: Conceptualization, Methodology, Data curation, Project administration, Writing - review & editing, Funding acquisition, Investigation
Search for more papers by this authorMarcos Britto Correa
Graduate Program in Dentistry, Federal University of Pelotas, Pelotas, Brazil
Contribution: Conceptualization, Methodology, Investigation, Writing - review & editing
Search for more papers by this authorFernando Barros
Graduate Program in Epidemiology, Federal University of Pelotas, Pelotas, Brazil
Contribution: Conceptualization, Investigation, Methodology, Writing - review & editing
Search for more papers by this authorIsabel Oliveira de Oliveira
Graduate Program in Epidemiology, Federal University of Pelotas, Pelotas, Brazil
Contribution: Conceptualization, Investigation, Methodology, Writing - review & editing
Search for more papers by this authorMarlos Rodrigues Domingues
Graduate Program in Physical Education, Federal University of Pelotas, Pelotas, Brazil
Contribution: Writing - review & editing, Conceptualization, Methodology, Investigation
Search for more papers by this authorFlavio Fernando Demarco
Graduate Programs in Dentistry and Epidemiology, Federal University of Pelotas, Pelotas, Brazil
Contribution: Conceptualization, Methodology, Investigation, Writing - review & editing, Funding acquisition
Search for more papers by this authorCorresponding Author
Marília Leão Goettems
Graduate Program in Dentistry, Federal University of Pelotas, Pelotas, Brazil
Correspondence
Marília Leão Goettems, Federal University of Pelotas, Graduate Program in Dentistry, Pelotas, RS, Brazil.
Email: [email protected]
Contribution: Conceptualization, Methodology, Writing - original draft, Writing - review & editing, Formal analysis, Investigation
Search for more papers by this authorSummary
This study aimed to test for an association between hair cortisol, as an indicator of chronic stress, and possible sleep bruxism among children participating in the 2015 Pelotas Birth Cohort Study. Data from 3229 children were analysed. Possible sleep bruxism was identified based on caregivers' reports when the child was 4 years old. Trained fieldworkers collected hair samples from children, and a standardized protocol was used for hormone extraction and cortisol quantification from the hair. Information on socioeconomic, demographic, psychological and behavioural characteristics was gathered through questionnaires. Poisson regression with robust variance was used to evaluate the impact of hair cortisol concentration on the occurrence of possible sleep bruxism, guided by a directed acyclic graph. The prevalence of possible sleep bruxism was 21.46% (n = 693); median hair cortisol concentration was 7.8 pg mg−1. Hair cortisol concentration was not found to be associated with the occurrence of sleep bruxism. However, the presence of sleep bruxism was linked to higher maternal education (p = 0.027), maternal stress level (p = 0.032), excessive use of electronic devices (p = 0.007), and child emotional and behavioural problems (p = 0.003). Furthermore, female sex was associated with a lower frequency of possible sleep bruxism (p = 0.003). There was no association between chronic stress, as measured by hair cortisol concentration, and the occurrence of possible sleep bruxism. This study underscores the role of sociodemographic factors and children's mental health in the occurrence of sleep bruxism among children in this population.
CONFLICT OF INTEREST STATEMENT
The authors declare that there are no conflicts of interest related to this research.
Open Research
DATA AVAILABILITY STATEMENT
The data that support the findings of this study are available from the corresponding author upon reasonable request.
Supporting Information
| Filename | Description |
|---|---|
| jsr14427-sup-0001-supinfo.pdfPDF document, 84.5 KB | DATA S1. Supporting Information. |
Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
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