title: Estimation of esophageal cancer incidence in Tehran by log- linear method using population-based cancer registry data.
abstract: BACKGROUND
  Having knowledge or estimation of cancer incidence is necessary for planning and implementation of any cancer prevention and control programs. Population-based registries provide valuable information to achieve these objectives but require extra techniques to estimate the incidence rate. The present study aimed to estimate the esophageal cancer incidence using a log-linear method based on Tehran population-based cancer registry data.
  
  
  METHODS
  New cases of esophageal cancer reported by three sources of pathology reports, medical records, and death certificates to Tehran Metropolitan Area Cancer Registry Center during 2002-2006 were entered into the study and the incidence rate was estimated based on log-linear models. We used Akaike statistics to select the best-fit model.
  
  
  RESULTS
  During 2002-2006, 1,458 new cases of esophageal cancer were reported by the mentioned sources to the population-based cancer registry. Based on the reported cases, cancer incidence was 4.5 per 100,000 population and this was estimated to be 10.5 per 100,000 by the log-linear method.
  
  
  CONCLUSIONS
  Based on the obtained results, it can be concluded that an estimated incidence for 2004 of 8.3 per 100,000 population could be a good benchmark for the incidence of esophageal cancer in the population of Tehran metropolis.
authors.affiliation: Department of Epidemiology, School of Public Health, Shaheed Beheshti University of Medical Sciences, Tehran, Iran E-mail : aqaei.a@gmail.com.
authors.forename: Alireza
authors.initials: A
authors.lastname: Mosavi-Jarrahi
authors.forename: Toraj
authors.initials: T
authors.lastname: Ahmadi-Jouibari
authors.forename: Farid
authors.initials: F
authors.lastname: Najafi
authors.forename: Yadollah
authors.initials: Y
authors.lastname: Mehrabi
authors.forename: Abbas
authors.initials: A
authors.lastname: Aghaei
mesh_terms: D000368:Aged; D004938:Esophageal Neoplasms / Q000453:epidemiology*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D015994:Incidence; D007492:Iran / Q000453:epidemiology; D008297:Male; D008499:Medical Records; D008875:Middle Aged; D008962:Models, Theoretical; D011379:Prognosis; D012042:Registries / Q000706:statistics & numerical data*