Jeffrey J Hyman1, Britt C Reid. 1. National Institute of Dental and Craniofacial Research, Bethesda, MD 20892-6401, USA. jh393y@nih.gov
Abstract
OBJECTIVES: The objective of this study was to identify variables related to periodontal loss of attachment (LOA). MATERIALS AND METHODS: The study population consisted of a nationally representative sample of 12,325 US adults who participated in the National Health and Nutrition Examination Survey III. The analyses used survey multinomial logistic regression to account for the complex survey design. RESULTS: The adjusted odds ratio for a mean LOA of 3 mm or more associated with current smoking was 18.55 (95% CI 9.44-36.45) among 20-49-year olds. Among those aged 50 years or more, the odds ratio for a mean LOA of 4 mm or more was 25.64 (13.04-50.40). Prior smoking, untreated decayed surfaces (on both person and site levels), and male gender were also associated with LOA. There was no excess risk observed among non-Hispanic blacks or Mexican-Americans. The adjusted population attributable fractions due to current smoking were 60% for persons aged 20-49 with the worst 10% of LOA (1.58 mm or more), and 47% for those aged 50 plus (LOA of 3.39 mm or more). CONCLUSION: These results support earlier findings regarding the central role of cigarette smoking in the etiology of periodontal loss of attachment, a role due in large part to the substantial relationship between smoking and severe periodontal disease.
OBJECTIVES: The objective of this study was to identify variables related to periodontal loss of attachment (LOA). MATERIALS AND METHODS: The study population consisted of a nationally representative sample of 12,325 US adults who participated in the National Health and Nutrition Examination Survey III. The analyses used survey multinomial logistic regression to account for the complex survey design. RESULTS: The adjusted odds ratio for a mean LOA of 3 mm or more associated with current smoking was 18.55 (95% CI 9.44-36.45) among 20-49-year olds. Among those aged 50 years or more, the odds ratio for a mean LOA of 4 mm or more was 25.64 (13.04-50.40). Prior smoking, untreated decayed surfaces (on both person and site levels), and male gender were also associated with LOA. There was no excess risk observed among non-Hispanic blacks or Mexican-Americans. The adjusted population attributable fractions due to current smoking were 60% for persons aged 20-49 with the worst 10% of LOA (1.58 mm or more), and 47% for those aged 50 plus (LOA of 3.39 mm or more). CONCLUSION: These results support earlier findings regarding the central role of cigarette smoking in the etiology of periodontal loss of attachment, a role due in large part to the substantial relationship between smoking and severe periodontal disease.
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