ArticleEuropean archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry2026
Nutritional status and its association with early childhood caries in Peruvian pre-schoolers aged 3-5 years: a cross-sectional study.
Article in European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeThis study aimed to evaluate the association between nutritional status, assessed through multiple anthropometric indicators, and early childhood caries (ECC) in Peruvian preschoolers.
methodsA cross-sectional study was conducted using data from 204 children aged 3-5 years enrolled in a birth cohort. Nutritional status was evaluated using anthropometric indicators from the World Health Organisation; data from the first 2 years of life were retrieved from the original birth cohort records, whilst subsequent assessments were conducted at the time of the study. ECC was assessed using the simplified International Caries Detection and Assessment System (ICDAS). A questionnaire was administered to mothers/caregivers regarding factors associated with ECC. Owing to COVID-19-related restrictions, data collection was carried out in two stages, 17 months apart, extending the originally planned data-collection period. Poisson regression with robust variance was performed to examine the associations between ECC and nutritional status, adjusting for confounding variables. Effect modification by COVID-19-related assessment period was assessed by including an interaction term in the Poisson model, with a Mantel-Haenszel stratified analysis as a sensitivity check.
resultsECC prevalence was 6.6% lower for each one-unit increase in BMI-for-age z score (95% CI: 0.1%, 12.8%). Poor oral hygiene (PR: 3.592; 95% CI: 1.889, 6.829) and frequent sweet consumption (PR: 1.200; 95% CI: 1.001, 1.439) were associated with ECC. There was no evidence of effect modification by assessment period.
conclusionAn association was observed between BMI-for-age and ECC, with a lower prevalence of ECC amongst children with higher BMI-for-age values. These findings highlight the complex relationship between nutritional status and oral health in preschool children.
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