title: Detection of oral Helicobacter Pylori infection using saliva test cassette.
abstract: OBJECTIVE
  To investigate the incidence of oral infection with Helicobacter pylori (H. pylori) and identify related epidemiological factors among freshmen of four colleges in Yancheng.
  
  
  METHODS
  The data, scored positive or negative, were collected on 160 individuals who had been diagnosed by H. pylori Saliva Test Cassette (HPS) during October 2013 to October 2014. H. pylori Saliva Test Cassette (HPS) is to use colloidal gold technique to specifically identify urease in saliva. A standard questionnaire, with variables including sex, educational degree of parents etc., was used in the subjects. Statistical data of diagnostic test were analyzed by SPSS17.0 software.
  
  
  RESULTS
  Out of 160, 82 subjects were detected positive and 78 were negative. In univariate analysis, dental plaque, family history of stomach diseases, habit of washing hands before meals and habit of brushing teeth twice daily were associated negatively with H. pylori infection. Multivariate logistic regression analysis showed that dental plaque and family history of stomach diseases were the risk factors which may be associated with H. pylori infection.
  
  
  CONCLUSIONS
  Dental plaque and family history of gastric diseases were risk factors of oral H. pylori infection. It is vital for the prevention of H. pylori infection to focus on health education and oral hygiene, and avoid transmission by oral-oral route as well.
authors.affiliation: Min Yu, MD. Yancheng Institute of Health Sciences, Yancheng, Jiangsu 224005, China.
authors.forename: Min
authors.initials: M
authors.lastname: Yu
authors.affiliation: Xue-Yan Zhang, MD. Yancheng Institute of Health Sciences, Yancheng, Jiangsu 224005, China.
authors.forename: Xue-Yan
authors.initials: XY
authors.lastname: Zhang
authors.affiliation: Qing Yu, MD. Yancheng Institute of Health Sciences, Yancheng, Jiangsu 224005, China.
authors.forename: Qing
authors.initials: Q
authors.lastname: Yu
keywords: Helicobacter pylori; Oral risk factors. Epidemiology; Saliva Test Cassette