Epidemiology of upper gastrointestinal cancers in Iran: A sub site analysis of 761 cases

doi:10.3748/wjg.v13.i40.5367

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Oct 28, 2007 (publication date) through Nov 5, 2024

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World Journal of Gastroenterology

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1007-9327

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Baishideng Publishing Group Inc, 7041 Koll Center Parkway, Suite 160, Pleasanton, CA 94566, USA

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World J Gastroenterol. Oct 28, 2007; 13(40): 5367-5370
Published online Oct 28, 2007. doi: 10.3748/wjg.v13.i40.5367

Epidemiology of upper gastrointestinal cancers in Iran: A sub site analysis of 761 cases

Noushin Taghavi, Dariush Nasrollahzadeh, Shahin Merat, Abbas Yazdanbod, Mahshid Hormazdi, Masoud Sotoudeh, Shahriar Semnani, Farhad Eslami, Haji-Amin Marjani, Saman Fahimi, Hooman Khademi, Reza Malekzadeh

Noushin Taghavi, Dariush Nasrollahzadeh, Shahin Merat, Masoud Sotoudeh, Farhad Eslami, Haji-Amin Marjani, Saman Fahimi, Hooman Khademi, Reza Malekzadeh, Digestive Disease Research Center, Shariati Hospital, Medical Sciences, University of Tehran, Tehran, Iran

Abbas Yazdanbod, Ardabil University of Medical Sciences, Tehran, Iran

Mahshid Hormazdi, Mehr General Hospital, Iran University of Medical Sciences, Tehran, Iran

Shahriar Semnani, Golestan University of Medical Sciences, Tehran, Iran

Author contributions: All authors contributed equally to the work.

Correspondence to: Shahin Merat, MD, Digestive Disease Research Center, Shariati Hospital, N Kargar St, Tehran 14144, Iran. merat@ams.ac.ir

Telephone: +98-21-88012992 Fax: +98-21-22253635

Received: June 15, 2007
Revised: August 17, 2007
Accepted: September 1, 2007
Published online: October 28, 2007

Abstract

AIM: To define the sub site distribution of upper gastrointestinal cancers in three provinces of Iran.

METHODS: The study was carried out in three provinces in Iran: Ardabil, Golestan, and Tehran. In Arbabil and Golestan, the data was collected from the sole referral center for gastrointestinal cancers and the local cancer registry. For Tehran province, data from two major private hospitals were used. All gastric and esophageal cancer patients diagnosed during the period from September 2000 and April 2002 were included in the study.

RESULTS: A total of 761 patients with upper gastrointestinal cancers were identified, 314 from Ardabil, 261 from Golestan, and 186 from Tehran. In Tehran, the relative rate of cancer increased from the upper esophagus to the distal stomach. In Golestan, the reverse pattern was observed. In Ardabil, the mid portion (distal esophagus and proximal stomach) was involved most frequently.

CONCLUSION: There were considerable variations in the sub site of upper gastrointestinal cancers in the three provinces studied. We cannot provide any explanation for this variation. Further research aimed at explaining the discrepancies in sub site distribution of upper gastrointestinal cancers may help identify important risk factors.

Keywords: Upper gastrointestinal tract; Gastrointestinal neoplasms; Iran