title: Time trends in peptic ulcer, erosive reflux oesophagitis, gastric and oesophageal cancers in a multiracial Asian population.
abstract: BACKGROUND
  Dramatic changes in the prevalence and pattern of gastrointestinal disease has taken place in Asia in recent years.
  
  
  OBJECTIVE
  To compare the prevalence of duodenal (DU) and gastric ulcers (GU), erosive oesophagitis (EO), gastric cancer (GCA) and oesophageal cancer (OCA) and Helicobacter pylori infection over a 10-year interval of time in a multiracial South-East Asian population.
  
  
  METHODS
  Endoscopy records of first time gastroscopy in the University of Malaya Medical Centre, Kuala Lumpur, Malaysia were reviewed for 1989/1990 and 1999/2000.
  
  
  RESULTS
  In the period of 1989-1990, 3252 records and in 1999-2000, 4615 records were analysed. Both DU (21.1-9.5%) and GU (11.9-9.4%) had decreased significantly (P < 0.001). EO had increased significantly from 2.0% to 8.4% (P < 0.001). Both GCA and OCA had declined in the 10-year interval. Helicobacter pylori prevalence had decreased from 51.7% to 30.3% (P < 0.001).The decrease in DU and GU was seen in all racial groups. The increase in EO was most marked in Indians and the decrease in GCA in Chinese. The proportion of H. pylori-associated DU and GU had also decreased with time.
  
  
  CONCLUSIONS
  Peptic ulcers and H. pylori infection had declined over a 10-year period of time and showed an opposing time trend with EO, which had increased dramatically. Both GCA and OCA had declined in prevalence.
authors.affiliation: Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia.
authors.forename: K-L
authors.initials: KL
authors.lastname: Goh
authors.forename: H-T
authors.initials: HT
authors.lastname: Wong
authors.forename: C-H
authors.initials: CH
authors.lastname: Lim
authors.forename: M S
authors.initials: MS
authors.lastname: Rosaida
mesh_terms: D044466:Asian People; D004938:Esophageal Neoplasms / Q000453:epidemiology*; D004942:Esophagitis, Peptic / Q000453:epidemiology*; D005260:Female; D016481:Helicobacter Infections / Q000453:epidemiology*; D016480:Helicobacter pylori / Q000302:isolation & purification; D006801:Humans; D008296:Malaysia / Q000453:epidemiology; D008297:Male; D010437:Peptic Ulcer / Q000453:epidemiology*; D015995:Prevalence; D013274:Stomach Neoplasms / Q000453:epidemiology*