ArticleInternational journal of environmental research and public health2024
Influence of School Type and Class Level on Mean Caries Experience in 12-Year-Olds in Serial Cross-Sectional National Oral Health Survey in Germany-Proposal to Adjust for Selection Bias.
Article in International journal of environmental research and public health, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed, 3 citations in OpenAlex.
- Impact of Health System Structures on Caries Prevalence Among Schoolchildren in Germany and Saudi Arabia.Children (Basel, Switzerland) · 2026Article
- Caries Rates in Different School Environments Among Older Adolescents: A Cross-Sectional Study in Northeast Germany.Children (Basel, Switzerland) · 2025Article
- Caries Level in 3-Year-Olds in Germany: National Caries Trends and Gaps in Primary Dental Care.Children (Basel, Switzerland) · 2024Article
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The objective of this study is to analyse the effects of attended school type and class level on the reported caries experience (DMFT) obtained in the serial cross-sectional National Oral Health Study in Children in Germany (NOHSC) for the WHO reference group of 12-year-olds.
methodsCaries data from the 2016 NOHSC were adjusted for each federal state on the basis of two additional large-scale datasets for school type and class level.
resultsTwelve-year-olds in all grades in Saxony-Anhalt (n = 96,842) exhibited significantly higher DMFT values than 12-year-olds in 6th grade (n = 76,456; +0.10 DMFT; ~14.2%,
conclusionSelection bias in this NOHSC leads to an underestimation of caries levels by about 15%. Due to very low caries experience in children in Germany, these precise adjustments (+0.06 DMFT) have only a minor effect on interpretations of the national epidemiologic situation. Consequently, other national caries studies worldwide using the robust marker of DMFT should also adjust for systematic selection bias related to socio-economic background rather than increasing efforts in examination strategy.
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