Journal
JOURNAL OF CLINICAL PERIODONTOLOGY
Volume 41, Issue 3, Pages 215-223Publisher
WILEY
DOI: 10.1111/jcpe.12213
Keywords
Brazil; cohort; epidemiology; longitudinal studies; periodontal attachment loss; periodontal diseases; risk factors; smoking
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Funding
- Foundation for Post-Graduate Education (CAPES), Brasilia, Brazil [1614/99-1]
- Foundation for Research Support of Rio Grande do Sul, Porto Alegre, Brazil [PPSUS-0700481]
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Aim: To assess sociodemographic and behavioural risk factors for periodontal attachment loss (PAL) progression after 5years in an urban sample from south Brazil. MethodsAt baseline, 1586 subjects, 14years and older, were derived using a multistage probabilistic sample strategy. At follow-up, 653 of 755 subjects had 6 teeth and were included in this analysis. A modified multiple Poisson regression was used to calculate adjusted relative risks (RR) and 95% confidence intervals (CI). ResultsOverall, 247 (37.8%) subjects exhibited PAL progression 3mm in 4 teeth. Subjects older than 30years had approximately two times higher risk of having PAL progression than younger subjects. Subjects with low education had 53% higher risk (RR=1.53; 95% CI:1.06-2.22) of PAL progression compared to those with high education. A significant interaction between gender and smoking was observed. Among never-smokers, males were 33% more likely (RR=1.33; 95% CI:1.06-1.66) to experience PAL progression than females. Among smokers, there was 8% increased risk of PAL progression (RR=1.08; 95% CI:1.01-1.14) for males and 21% (RR=1.21; 95% CI:1.11-1.33) for females per 10 packyears. Skin colour, socioeconomy, dental care and diabetes were not significantly associated with PAL progression after statistical adjustment. Conclusion: Sociodemographic factors and smoking are independent risk factors for PAL progression in this Brazilian population.
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