Methodological Approaches to Comparative Trend Analyses: The Case of Adolescent Toothbrushing

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15260%2F25%3A73634113" target="_blank" >RIV/61989592:15260/25:73634113 - isvavai.cz</a>
Result on the web
<a href="https://www.ssph-journal.org/journals/international-journal-of-public-health/articles/10.3389/ijph.2024.1607669/full" target="_blank" >https://www.ssph-journal.org/journals/international-journal-of-public-health/articles/10.3389/ijph.2024.1607669/full</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3389/ijph.2024.1607669" target="_blank" >10.3389/ijph.2024.1607669</a>

Result language
angličtina
Original language name
Methodological Approaches to Comparative Trend Analyses: The Case of Adolescent Toothbrushing
Original language description
Objectives Research questions about how and why health trends differ between populations require decisions about data analytic procedure. The objective was to document and compare the information returned from stratified, fixed effect and random effect approaches to data modelling for two prototypical descriptive research questions about comparative trends in toothbrushing.Methods Data included five cycles of the Health Behaviour in School-aged Children 2006 to 2022, which provided a sample of 980192 11- to 15- year olds from 35 countries. Using logistic regression models and generalized linear mixed models, toothbrushing daily was regressed on time, following the three approaches to analysis of trends.Results The stratified approach suggested a positive but non-linear trend in toothbrushing from 2006 to 2022 in most countries but provided no statistical inference on the variation. The fixed effect and the random effect approach converged on a positive but flattening overall trend, with a statistically significant country variation in trends.Conclusion Only the fixed effect approach and the random effects approach provided clear answers to the research question. Additional methodological considerations for making an informed choice of analytical approach are discussed.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
30304 - Public and environmental health

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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