Low income and poor education at the individual and neighborhood level is linked to severe periodontitis among African-Americans and Whites in the U.S.//
The research, conducted at the Mailman School of Public Health was reported in the American Journal of Public Health.
The subjects were individuals aged 45 to 64 years, who participated in the Dental Atherosclerosis Risk in Communities Study, selected from communities in North Carolina, Mississippi, Minnesota, and Maryland.
Findings confirmed the associations between individual socioeconomic indicators and the prevalence of severe periodontitis among African Americans and Whites. Low income was associated with the prevalence of severe periodontitis among Whites, and both low education and income levels were associated with severe periodontitis among African-Americans.
Luisa N. Borrell, DDS, PhD, MPH, lead author, and assistant professor of Epidemiology Mailman School of Public Health and assistant professor of Dentistry, School of Dental and Oral Surgery, Columbia University, said, "These associations remained significant after adjustment for age, gender, recruitment center, and neighborhood socioeconomic conditions,"
"Specifically, the odds of having severe periodontitis were twice as high among African Americans without a high-school diploma than among their peers with a college degree or postgraduate education. Moreover, low income African Americans and Whites were at least 50% more likely to have severe periodontitis than their high-income counterparts," observed Dr. Borrell.
The study also shows that low-income Whites residing in disadvantaged neighborhoods had almost twice the odds of experiencing severe periodontitis than high-income Whites living in high-socioeconomic status neighborhoods.
This is the first study of its kind to investigate neighborhood effects on periodontal disease, although it had been postulated that area of residence
influences an individual's health behaviors and health-related norms. In the case of periodontal disease, social contexts could promote or prevent behaviors that may affect periodontal health such as smoking, regardless of individual socioeconomic status.
"Our study confirms that individual income and education are important factors in periodontal health independent of neighborhood socioeconomic circumstances for African Americans and Whites. Most importantly, this study shows that being poor and living in a disadvantaged neighborhood increases the odds of periodontal disease among Whites only" says Dr. Borrell.
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