title: [A cross sectional survey on the prevalence of food intolerance and its determinants through physical checkup programs in the elderly].
abstract: OBJECTIVE
  To explore the prevalence of food intolerance and its determinants in healthcare elderly in China.
  
  
  METHODS
  A cross sectional survey was carried out from August 1(st), 2008 to June 30(th), 2009, that including 736 60-year-olds from a Health Management Research Institute, Chinese PLA General Hospital. Data was double entried in computer and organized by EpiData 3.0. Non conditional logistic regression model was used for odd ratio (OR) and 95% CI, with the use of SPSS 13.0.
  
  
  RESULTS
  The three leading foodstuff on intolerance were crab, egg and shrimp, with the prevalence rates as 35.9% , 28.8% and 15.1% respectively. Results from the multiple regression analysis showed that the crab intolerance was associated with Helicobacter pylori infections (P < 0.05). The OR(95%CI) of Helicobacter pylori infections (DOB≥4) was 1.544 (1.139-2.091).
  
  
  CONCLUSIONS
  The three leading intolerance foods were egg, crab and shrimp. Crab intolerance was associated with Helicobacter pylori infections. To reduce the risk of crab intolerance, it was necessary to control the infection caused by Helicobacter pylori.
authors.affiliation: Institute of Geriatrics, Chinese PLA General Hospital, Beijing 100853, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Institute of Geriatrics, Chinese PLA General Hospital, Beijing 100853, China.
authors.forename: Xiaoyong
authors.initials: X
authors.lastname: Sai
authors.affiliation: Health Division of Guard Bureau, General Advisor Ministry of Chinese PLA.
authors.forename: Yufa
authors.initials: Y
authors.lastname: Sun
authors.affiliation: Health Management Research Institute, Chinese PLA General Hospital.
authors.forename: Yansong
authors.initials: Y
authors.lastname: Zheng
mesh_terms: D000368:Aged; D000818:Animals; D002681:China / Q000453:epidemiology; D003430:Cross-Sectional Studies; D003445:Crustacea; D021181:Egg Hypersensitivity / Q000453:epidemiology; D005512:Food Hypersensitivity / Q000453:epidemiology*; D016481:Helicobacter Infections / Q000453:epidemiology*; D016480:Helicobacter pylori / Q000302:isolation & purification; D006769:Hospitals, General; D006801:Humans; D016015:Logistic Models; D016017:Odds Ratio; D010808:Physical Examination; D015995:Prevalence