title: Correlation of cancer incidence with diet, smoking and socio- economic position across 22 districts of Tehran in 2008.
abstract: BACKGROUND
  Variation in cancer incidence in geographical locations is due to different lifestyles and risk factors. Diet and socio-economic position (SEP) have been identified as important for the etiology of cancer but patterns are changing and inconsistent. The aim of this study was to investigate correlations of the incidence of common cancers with food groups, total energy, smoking, and SEP.
  
  
  METHODS
  In an ecological study, disaggregated cancer data through the National Cancer Registry in Iran (2008) and dietary intake, smoking habits and SEP obtained through a population based survey within the Urban Health Equity Assessment (Urban-HEART) project were correlated across 22 districts of Tehran.
  
  
  RESULTS
  Consumption of fruit, meat and dairy products adjusted for energy were positively correlated with bladder, colorectal, prostate and breast and total cancers in men and women, while these cancers were adversely correlated with bread and fat intake. Also prostate, breast, colorectal, bladder and ovarian cancers had a positive correlation with SEP; there was no correlation between SEP and skin cancer in both genders and stomach cancer in men.
  
  
  CONCLUSIONS
  The incidence of cancer was higher in some regions of Tehran which appeared to be mainly determined by SEP rather than dietary intake. Further individual data are required to investigate reasons of cancer clustering.
authors.affiliation: Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran. asadilari@tums.ac.ir
authors.forename: Marzieh
authors.initials: M
authors.lastname: Rohani-Rasaf
authors.forename: Morteza
authors.initials: M
authors.lastname: Abdollahi
authors.forename: Shima
authors.initials: S
authors.lastname: Jazayeri
authors.forename: Naser
authors.initials: N
authors.lastname: Kalantari
authors.forename: Mohsen
authors.initials: M
authors.lastname: Asadi-Lari
mesh_terms: D004032:Diet / Q000009:adverse effects*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007492:Iran / Q000453:epidemiology; D008019:Life Style; D008297:Male; D009369:Neoplasms / Q000453:epidemiology* / Q000209:etiology; D011379:Prognosis; D012307:Risk Factors; D012907:Smoking / Q000009:adverse effects*; D012959:Socioeconomic Factors; D013997:Time Factors