Social Factors and Periodontitis in an Older Population
Luisa N. Borrell, DDS, PhD,
Brian A. Burt, BDS, PhD,
Harold W. Neighbors, PhD and
George W. Taylor, DMD, DrPH
Luisa N. Borrell is with the Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY. Brian A. Burt is with the Department of Epidemiology, University of Michigan, Ann Arbor. Harold W. Neighbors is with the Department of Health Behavior and Health Education, University of Michigan. George W. Taylor is with the School of Dentistry, University of Michigan.
FIGURE 1—The effect of income on prevalence of periodontitis in Blacks and Whites: Third National Health and Nutrition Examination Survey, 19881994.
Note. Interaction obtained from a model with race/ethnicity as an independent covariates and adjusted for age, gender, education, presence of insurance, time since last dental visit, smoking, and diabetes. Income categories were specified as low (< $20 000) and high ( $20 000).