Department of Periodontology, Faculty of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
J Clin Periodontol. 2014 Mar;41(3):215-23. doi: 10.1111/jcpe.12213. Epub 2014 Jan 12.
To assess sociodemographic and behavioural risk factors for periodontal attachment loss (PAL) progression after 5 years in an urban sample from south Brazil.
At baseline, 1586 subjects, 14 years 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).
Overall, 247 (37.8%) subjects exhibited PAL progression ≥3 mm in ≥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.
Sociodemographic factors and smoking are independent risk factors for PAL progression in this Brazilian population.
评估巴西南部城市人群中，5 年后牙周附着丧失（PAL）进展的社会人口学和行为危险因素。
在基线时，采用多阶段概率抽样策略，从 1586 名 14 岁及以上的受试者中获得样本。在随访时，755 名受试者中有 653 名有≥6 颗牙齿，并纳入了本次分析。采用改良的多变量泊松回归计算调整后的相对风险（RR）和 95%置信区间（CI）。
总体而言，247 名（37.8%）受试者在≥4 颗牙齿上出现 PAL 进展≥3mm。年龄大于 30 岁的受试者发生 PAL 进展的风险是年龄较小的受试者的两倍左右。受教育程度较低的受试者发生 PAL 进展的风险比受教育程度较高的受试者高 53%（RR=1.53；95%CI：1.06-2.22）。性别和吸烟之间存在显著的交互作用。在从不吸烟者中，男性发生 PAL 进展的可能性比女性高 33%（RR=1.33；95%CI：1.06-1.66）。在吸烟者中，男性的 PAL 进展风险增加了 8%（RR=1.08；95%CI：1.01-1.14），女性则增加了 21%（RR=1.21；95%CI：1.11-1.33），每增加 10 包年。在统计学调整后，皮肤颜色、社会经济状况、口腔护理和糖尿病与 PAL 进展无显著相关性。
在本巴西人群中，社会人口学因素和吸烟是 PAL 进展的独立危险因素。
