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Cadernos de Saúde Pública

On-line version ISSN 1678-4464Print version ISSN 0102-311X


CELESTE, Roger Keller; FRITZELL, Johan  and  NADANOVSKY, Paulo. The relationship between levels of income inequality and dental caries and periodontal diseases. Cad. Saúde Pública [online]. 2011, vol.27, n.6, pp.1111-1120. ISSN 1678-4464.

The objective of this study was to evaluate the association between income inequality at a lagged time of 2 and 11 years with two short latency outcomes (untreated dental caries and gingivitis) and two long latency outcomes (edentulism and periodontal attachment loss > 8mm). We used data from the Brazilian oral health survey in 2002-2003. Our analysis included 13,405 subjects aged 35-44 years. Different lagged Gini at municipal level were fitted using logistic and negative binomial multilevel analyses. Covariates included municipal per capita income, equivalized income, age, sex, time since last dental visit and place of residence (rural versus urban). Crude estimates showed that only untreated dental caries was associated with current and lagged Gini, but in adjusted models only current Gini remained significant with a ratio of 1.19 (95%CI: 1.09-1.30) for every ten-point increase in the Gini coefficient. We conclude that lagged Gini showed no association with oral health; and current income Gini was associated with current dental caries but not with periodontal disease.

Keywords : Periodontal Diseases; Dental Caries; Social Inequity.

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