title: [Multiple factors analysis of periodontal status in pregnant women in Shanghai].
abstract: OBJECTIVE
  To assess the periodontal health status of pregnant women in Shanghai, and to investigate the factors that may influence the periodontal health status of pregnant women, in order to provide theoretical evidence for the pointed oral health education and public health strategies in future.
  
  
  METHODS
  A cross-sectional study was carried out to recruit pregnant women (0 to 40 weeks) randomly selected from primary Maternal and Child Care Service Centers in Shanghai. The data collection included the questionnaire survey and clinical periodontal examination. Visible plaque index (VPI), bleeding on probing (BOP), probing depth (PD), and clinical attachment level (CAL) were assessed during the clinical examination. Chi-square test and logistic regression analysis were performed to analyze the data by SPSS 18.0 software package.
  
  
  RESULTS
  A total of 561 pregnant women were surveyed. The mean age was (27.5 ± 4.0) years. The mean gestational age was (18.9 ± 8.1) weeks, ranged from 5 to 40 weeks. The prevalence of periodontal disease during pregnancy was 49.6%, of which the prevalence of gingivitis and periodontitis were 42.8% and 6.8%, respectively. The results of multiple logistic regression showed that pregnant women who were in the second and third trimesters, and whose place of residence was rural were significantly more likely to suffer periodontal disease.
  
  
  CONCLUSIONS
  Gestational age and place of residence are the factors that are associated with the prevalence of periodontal disease among pregnant women in Shanghai. More oral health education and promotion should be targeted on these pregnant women at high-risk.
authors.affiliation: Department of Preventive Dentistry, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; Shanghai Key Laboratory of Stomatology. Shanghai 200011, China.E-mail:chenlincjs@163.com.
authors.forename: Lin
authors.initials: L
authors.lastname: Chen
authors.forename: Hai-xia
authors.initials: HX
authors.lastname: Lu
authors.forename: Tian-you
authors.initials: TY
authors.lastname: Wei
authors.forename: Xi-ping
authors.initials: XP
authors.lastname: Feng
mesh_terms: D000328:Adult; D002681:China; D003430:Cross-Sectional Studies; D003774:Dental Plaque Index; D005260:Female; D005891:Gingivitis; D006801:Humans; D016015:Logistic Models; D010510:Periodontal Diseases; D010518:Periodontitis; D011247:Pregnancy; D011248:Pregnancy Complications; D015995:Prevalence; D055815:Young Adult