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Subgroup detection-based dental caries status and inequalities trend exploration

A nationwide, 10-year-repeated cross-sectional study

Bibliographic Data

ID22089140
AuthorsJie He (0000-0002-4324-1125, Peking University), Hongyuan Liang (0009-0008-2678-2094, Peking University), Jian Kang (0009-0002-5713-1776, University of Michigan, corresponding author), Chao Yuan (0000-0001-7902-802X, Peking University, corresponding author)
Year2022
Volume10
Pages916878-916878
Publication date2022-08-12
Peer ReviewedYes
Open AccessYes
TypeARTICLE
VenueFrontiers in Public Health (JOURNAL)
Journal identifiersISSN: 2296-2565 • E-ISSN: 2296-2565
PublisherFrontiers Media SA (PUBLISHER • CH)
DOI10.3389/fpubh.2022.916878
PMID36033787
OpenAlexW4291148923
LanguageEN
Citations received1
References cited34

Background: The goal of this study was to identify potentially important factors for the dental health though heterogeneous effects of risk factors within Chinese adolescent populations with different characteristics by analyzing the repeated cross-sectional data collected in the 3rd (2005) and 4th (2015) National Oral Health Survey. Methods: We studied the relationships between the decayed, missing and filled permanent teeth (DMFT) score, which was a discrete value, with the caries risk factors (region, census type, gender, only child or not, parents' education level, tooth bushing, dentist visit history, knowledge score, sugar intake, and pit-and-fissure sealants status), though the Poisson mixture regression model, which could identify subgroups among the full population and estimate the heterogeneous effects of risk factors simultaneously. We performed a series of tests and trend analysis based on the model fitting results to explore the primary causes for the dental caries issue clearly and intuitively. Results: A total of 39,049 teenagers aged 12 years were involved in the analysis. The Poisson mixture regression model clustered all individuals into three subgroups, where the mean values (standard deviations) of DMFT were 0.18 (0.56), 1.31 (1.49), and 2.91 (1.89), respectively. Model fitting results indicated that the heterogeneous effects of the involved risk factors were significant. In addition, we also found significant differences in the distributions and trends of DMFT within different categories of selected risk factors (region, census type, gender and dentist visiting history) from the projection analysis results. The estimated and projected proportions showed that the proportion of high caries risk population in the southwestern region increased by 31.8%, and will become even more severe as it will be the major component of high caries risk population in 2025. Conclusions: We found that the trends for the developments and changes of dental caries within populations with different characteristics were inequality. The regional difference is the primary factor for diversified changes in DMFT. The findings in this study provide support for intervention and prevention policies for the deterioration of dental caries risk within different adolescent populations

Cross-sectional study · Environmental health · Poisson regression · Population · Regression analysis · Statistics · Demography · Dental Health and Care Utilization · Dentistry · Forensic Anthropology and Bioarchaeology Studies · Mathematics · Medicine · Oral microbiology and periodontitis research

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Unique citing works1
Citations per year1
Citation span2025 - 2025 (1)
Citation velocityrecent
Highly citedNo
Citation typesNeutral: 1

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