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Luisa N. Borrell, DDS, PhD, James D. Beck, PhD and Gerardo Heiss, PhD

Luisa N. Borrell is with the Department of Epidemiology, Mailman School of Public Health and School of Dental and Oral Surgeons, Columbia University, New York, NY. James D. Beck is with the School of Dentistry, University of North Carolina, Chapel Hill. Gerardo Heiss is with the Department of Epidemiology, University of North Carolina School of Public Health.

Correspondence: Requests for reprints should be sent to Luisa N. Borrell, DDS, PhD, Department of Epidemiology, Mailman School of Public Health, School of Dental and Oral Surgeons, Columbia University, 722 West 168th St, New York, NY 10032 (e-mail: lnb2{at}columbia.edu).

Objectives. We used data from the Dental Atherosclerosis Risk in Communities study to examine whether individual- and neighborhood-level socioeconomic characteristics were associated with periodontal disease.

Methods. We assessed severe periodontitis with a combination of clinical attachment loss and pocket depth measures. Marginal logistic regression modeling was used to estimate the association between individual and neighborhood socioeconomic indicators and prevalence of severe periodontitis before and after control for selected covariates. Residual intraneighborhood correlations in outcomes were taken into account in the analyses.

Results. Individual-level income and education were associated with severe periodontitis among Whites and African Americans, and these associations remained significant after adjustment for age, gender, recruitment center, and neighborhood socioeconomic score. Low-income Whites residing in disadvantaged neighborhoods had 1.8-fold (95% confidence interval=1.2, 2.7) higher odds of having severe periodontitis than high-income Whites residing in advantaged neighborhoods.

Conclusions. Individual income and education were associated with severe periodontitis independently of neighborhood socioeconomic circumstances. Although the association between neighborhood socioeconomic status and severe periodontitis was not statistically significant, poverty and residence in a disadvantaged neighborhood were associated with higher odds of severe periodontitis among Whites.

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