U-shaped association between untreated caries and body mass index in adults at Rabat dental University hospital, Morocco: cross sectional studyReport as inadecuate




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BMC Research Notes

, 10:5

Oral health

Abstract

BackgroundMany previous studies estimating the relationship between body mass index BMI and dental decay are conflicting. Most studies, however, examine the relationship using BMI as a categorical variable. This study evaluated the non-linear association between body mass index as a continuous variable and untreated dental decay.

MethodsCross-sectional study of adults free of diseases attending a tertiary dental clinic was conducted. The number of untreated caries at the time of consultation was assessed using the WHO criteria. A multivariable Poisson regression model for severity of untreated dental decay was first established. Restricted cubic spline functions were used to consider potential non-linear associations between BMI and untreated dental caries.

ResultsAfter multivariable adjustment, the prevalence ratios PR for the number of dental decay remained significantly associated with the age at beginning tooth brushing PR = 1.15, 95% CI 1.05–1.25, BMI < normal PR = 1.66, 95% CI 1.30–2.12, BMI > normal PR = 1.30, 95% CI 1.03–1.65, SDI PR = 0.61, 95% CI 0.50–0.75 and GI PR = 1.59, 95% CI 1.30–1.94. When BMI was evaluated as continuous variable, it exhibited a significant U-shaped pattern with the number of untreated dental decay both in univariable and multivariable analysis.

ConclusionThe rate of untreated tooth decay was associated with both under- and overweight status.

KeywordsHigh body mass index Low body mass index Caries severity Non linear association AbbreviationsBMIbody mass index

PRPrevalence ratios

SDstandard deviation

CIconfidence interval

Kgkilograms

mmeter

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Author: Sanaa Chala - Manal El Aidouni - Redouane Abouqal - Faïza Abdallaoui

Source: https://link.springer.com/







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