@article {704,
	title = {Risk factors for the progression of periodontal attachment loss: a 5-year population-based study in South Brazil},
	journal = {J Clin Periodontol},
	volume = {41},
	number = {3},
	year = {2014},
	note = {<p>Haas, Alex NogueiraWagner, Marcius ComparsiOppermann, Rui VicenteRosing, Cassiano KuchenbeckerAlbandar, Jasim MSusin, CristianoengResearch Support, Non-U.S. Gov{\textquoteright}t2013/12/07 06:00J Clin Periodontol. 2014 Mar;41(3):215-23. doi: 10.1111/jcpe.12213. Epub 2014 Jan 12.</p>
},
	month = {Mar},
	pages = {215-23},
	abstract = {<p>AIM: To assess sociodemographic and behavioural risk factors for periodontal attachment loss (PAL) progression after 5 years in an urban sample from south Brazil. METHODS: At baseline, 1586 subjects, 14 years and older, were derived using a multistage probabilistic sample strategy. At follow-up, 653 of 755 subjects had \&gt;/=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). RESULTS: Overall, 247 (37.8\%) subjects exhibited PAL progression \&gt;/=3 mm in \&gt;/=4 teeth. Subjects older than 30 years 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.</p>
},
	isbn = {1600-051X (Electronic)0303-6979 (Linking)},
	url = {http://www.ncbi.nlm.nih.gov/pubmed/24304168},
	author = {Haas, A. N. and Wagner, M. C. and Oppermann, R. V. and Rosing, C. K. and Albandar, J. M. and Susin, C.}
}
