Document Detail

Six-fold Difference in the Stomach Cancer Mortality Rate between Northern and Southern Iran.
MedLine Citation:
PMID:  23199244     Owner:  NLM     Status:  In-Data-Review    
BACKGROUND: Stomach cancer is the most common cancer in Iran. A multi-ethnic population and wide variation in the environmental risk factors may lead to variations in cancer risk within this country. We have designed an ecological study and evaluated geographical variation regarding mortality from stomach cancer and its established risk factors in Iran. 
METHODS: We used the Iranian National Causes of Death Registry and estimated the age-standardized mortality rates (ASMR) of stomach cancer in 29 Iranian provinces, stratified by sex and area of residence (rural/urban). 
RESULTS: The average ASMR of stomach cancer among Iranian males was 15 per 100,000 and for females it was 8.1 per 100,000. The highest and lowest mortality rates were observed in Kurdistan with an ASMR of 29.1 per 100,000 in northwestern Iran and Hormozgan that had an ASMR of 5.0 per 100,000 in southern Iran. Males had approximately a two-fold higher ASMR compared to females, as did rural residents when compared with urban residents. The prevalence of H. pylori infection was about 90% in the province of Ardabil (a high-risk area) and 27% in the province of Sistan-Baluchistan (a low-risk area). 
CONCLUSIONS: The wide geographical variation and high mortality rate of stomach cancer in Iran is likely due to differences in the exposure to the environmental risk factors among people living in the high- and low-risk areas, particularly H. pylori infection, a well-established risk factor of stomach cancer.
Kazem Zendehdel; Maryam Marzban; Azin Nahvijou; Nahid Jafari
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Archives of Iranian medicine     Volume:  15     ISSN:  1029-2977     ISO Abbreviation:  Arch Iran Med     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2012-12-03     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100889644     Medline TA:  Arch Iran Med     Country:  Iran    
Other Details:
Languages:  eng     Pagination:  741-6     Citation Subset:  IM    
Cancer Research Center, Cancer Institute, Tehran University of Medical Sciences, Tehran, Iran.
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