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

ABSTRACT:

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-lin

SUBMITTER: Torsheim T 

PROVIDER: S-EPMC11757018 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature