title: [Periodontal status of patients with post-acute myocardial infarction].
abstract: OBJECTIVE
  To evaluate the periodontal status of post-acute myocardial infarction patients, to identify whether periodontitis is associated with post-acute myocardial infarction in Chinese community population.
  
  
  METHODS
  Case and control subjects were enrolled from a community population, the  diagnose of post-acute myocardial infarction and systemic health were based on blood, electrocardiogram and ultrasound examinations by physicians.  Full mouth periodontal examinations were performed in 103 post-acute myocardial infarction patients and 52 healthy subjects. Mesial-buccal and distal-lingual sites per tooth were examined. The periodontal parameters including plaque index (PLI), bleeding index (BI), probing depth (PD), attachment  level (AL) and missing teeth number were recorded. Information of demographic data, behavior habits and general conditions were obtained by a  questionnaire. Periodontal status were compared between case and control groups, the association between AL, PD, PLI, missing teeth and post-acute  myocardial infarction was analyzed by Logistic regression.
  
  
  RESULTS
  In post-acute myocardial infarction group, there were 83 males, 20 females, mean  age was 68(41 to 84)years old, in healthy subjects there were 30 males and 22 females,mean age was 62(42 to 78) years old. There were no  statistically differences between two groups in age structure, smoking condition, education status and working condition, but body mass index, total  cholesterol, triglycerides and glucose in post-acute myocardial infarction group were significantly higher than that in healthy group,while high-density  lipoprotein significant lower . The number of missing teeth(6.89±7.39 vs. 4.21±5.62, P=0.01), mean AL [(3.48±2.34) mm vs. (2.61±1.85) mm, P=0.02]  and prevalence of severe periodontitis (44.7% vs. 32.7%, P<0.01) were significantly higher in post-acute myocardial infarction patients than that in healthy  subjects. Plaque index (1.69±0.49 vs. 1.57±0.50, P=0.22), PD (2.88±1.02 vs. 2.64±0.68, P=0.09) were higher in post-acute myocardial infarction patients than  that in healthy subjects, but not statistically significant. In the multivariate analysis, after adjusting sex, age, smoking, body mass index, diabetes,  hypertension and serum lipid, AL≥4.00 mm was a significant risk indicator for post-acute myocardial infarction(odd ratio 4.89, 95%confidence interval 1.26  to 18.94, P=0.02).
  
  
  CONCLUSIONS
  Periodontal status was worse in post-acute myocardial infarction patients than that in healthy subjects, AL≥4.00 mm was  an independent risk indicator for post-acute myocardial infarction.
authors: Department of Periodontology, Peking University School and Hospital of Stomatology, Beijing, China.
authors: Peng
authors: P
authors: Li
authors: Lu
authors: L
authors: He
authors: Yue-qin
authors: YQ
authors: Sha
authors: Qing-xian
authors: QX
authors: Luan
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D016022:Case-Control Studies; D002681:China / Q000453:epidemiology; D055113:Chronic Periodontitis / Q000150:complications* / Q000453:epidemiology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000150:complications*; D012307:Risk Factors