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

Int J Public Health · 2024 · PMC11757018 · PMID 39867841

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an overall trendno p-value reported

Likelihood ratio test of the main effects of time allowed for the assessment of the statistical significance of an overall trend across all countries (RQ1), while the interaction time by country allow for at omnibus test of region differences in trends (RQ2).

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