Trend of the Esophageal Cancer Incidence in IRAN

Abstract

Introduction: Cancer is one of the main causes for mortality and morbidity in the world. Identifying epidemiology and the trend of esophageal cancer may be highly effective in related planning. The present study has been carried out with the aim of exploring the morbidity and trend of esophageal cancer in Iran. Methods:The present study is a type of repeated analysis of the existing data. The population of this study consisted of the cancer registry data during the years (2003)(2004)(2005)(2006)(2007)(2008)(2009)) in Iran. The direct incidence rate was standard according to the World Health Organization (WHO) population. The incidence trend of this disease in this country was drawn by the means of the STATA software and the significance of the morbidity trend diagram was also derived via WINPEPI software. Results:The results indicated the increasing trend of esophageal cancer up to 2008 while this trend has been dropping during the years 2008-9. The 31914 cases of esophageal cancer which have been recorded throughout the country out of which this rate has been increased from 2759 cases in 2003 to 6210 cases in 2009 so this rate signifies 2 times in morbidity and the recording of cases. During this 7-year career, the maximum incidence rate was related to the Ardabil province with 19.03 per 100'000 cases in 2009 while the minimum incidence rate was related to Chahar Mahal and Bakhtiari and also Booshehr provinces with 0.48 and 0.42% per 1000 cases in 2003, respectively. Conclusion: The incidence rate of esophageal cancer in Iran is increasing, particularly in the northern and northwestern regions of the country. It is recommended to employ screening programs and premature diagnosis in the regions and among high risk populations.

Determining the Survival Rate of Colorectal Cancer in Iran: A Systematic Review and Meta-Analysis

“…Colorectal cancer (colon and rectum) is a common disease with different incidence in different areas of the world and is considered as a health problem in communities (Ansari et al, 2007;Khazaei et al, 2015). Despite of remarkable advances in medical sciences, cancer is an important disease and the second cause of death after cardiovascular diseases (Farzianpour et al, 2014;Jafari et al, 2015;Khazaei et al, 2016;Moradi et al, 2016). The results of different genetic, experimental, and epidemiological studies indicated that colorectal cancer develops as a result of mutual effects of genetic talent, environmental factors, and lifestyle (Ansari et al, 2007;Shadmani et al, 2017).…”

Lung Cancer Incidence Trends in Iran and in Six Geographical Regions of the Country (2000 - 2005)

“…According to the Ministry of Health, the level of records has increased from 18% in 1999 to 80% in 2005 (54), which may indicate the high level of cancers, and especially lung cancer, in Iran. Therefore, it is necessary to pay attention to the evolving trend of the cancer records system as had been mentioned in other cancer studies in Iran (55)(56)(57)(58)(59)(60). Though how much of the increase and what geographic areas are related to this issue should be investigated in future studies which normally is common in many countries by and large.…”

Determination of effective factors on geographic distribution of the incidence of colorectal cancer in Tehran using geographically weighted Poisson regression model

“…On the other hand, the incidence of many cancers, especially CRC, varies depending on the geographical situation of the area and has its own spatial pattern (20)(21)(22)(23)(24). Usually, Poisson regression is employed as the model for studying the correlation between variables at the level of a geographical unit with an outcome that is count.…”