Research Centre for the Study of Periodontal and Peri-Implant Diseases, University of Ferrara, Ferrara, Italy.
J Clin Periodontol. 2013 Aug;40(8):735-42. doi: 10.1111/jcpe.12118. Epub 2013 May 29.
To evaluate the association between the probability of a sulcus/pocket to bleed on probing (BoP) and patient related as well as site-specific characteristics.
Data from 88960 sites were retrospectively derived from the clinical record charts of 601 adult patients. BoP (positive/negative) had been recorded at the initial periodontal visit after probing pocket depth (PPD) assessment. To analyse the influence of patient-, tooth- and site-related factors on the probability for a site to be BoP+, a logistic, 3-level model was built with BoP as the binary outcome variable.
(i) The mean probability to be BoP+ for a site with PPD = 3 mm was 18%, and the log odds increased by 0.69 for each 1 mm increment in PPD; (ii) a significantly higher risk for BoP+ was observed for inter-proximal versus approximal surfaces, posterior teeth versus anterior teeth, females versus males, while a significantly lower risk was observed for smokers versus non-smokers; (iii) when controlling for the significant covariates, different BoP+ probabilities could still be observed among sites in patients with a different susceptibility to BoP.
The probability of a site to be BoP+ was associated with either site-specific (i.e. PPD, tooth aspect, tooth type) or patient-related factors (i.e. gender, smoking status).
评估探诊时龈沟/袋出血（BoP）的可能性与患者相关及特定部位特征之间的关系。
从 601 名成年患者的临床记录图表中回顾性获得了 88960 个部位的数据。在探诊后评估牙周袋深度（PPD）时记录了 BoP（阳性/阴性）。为了分析患者、牙齿和部位相关因素对部位发生 BoP+的可能性的影响，使用逻辑 3 水平模型，以 BoP 作为二分类因变量。
（i）PPD 为 3mm 时部位发生 BoP+的平均概率为 18%，PPD 每增加 1mm，对数优势比增加 0.69；（ii）与颊舌面相比，近中面的 BoP+风险显著增加，与前牙相比，后牙的 BoP+风险显著增加，与男性相比，女性的 BoP+风险显著增加，而与不吸烟者相比，吸烟者的 BoP+风险显著降低；（iii）当控制了显著的协变量后，在不同的易发生 BoP 患者中，仍可观察到不同部位的 BoP+概率存在差异。
部位发生 BoP+的概率与部位特异性（即 PPD、牙齿部位、牙齿类型）或患者相关因素（即性别、吸烟状况）有关。
