abstract objective: colorectal cancer is a common (5000 new cases per year in iran) and lethal disease. regarding the high incidence (7 cases per 100000) and survival rate of colorectal cancer and the priority of prevalence index in cancer management, in this study, 1, 2-3 and 4-5 year point prevalence were determined according to survival data. method: in this study, survival and incidence dat...

background: esophageal cancer is the second most common malignancy in iranian men and third most common in iranian women.the aim of this study is to discover the geographic distribution for age-standardized incidence rate of esophageal cancer among both genders in iran. methods: this ecological study used re-analysis medical records aggregated to provinces from the national cancer registry and ...

gastric cancer is the most common gi cancer. it has a very high incidence rate in the northeastern iran.contrary to western countries and japan, the incidence of gastric cancer has been increasing in iran during the past two decades. helicobacter pylori infection is the most important risk factor for developing gastric cancer. however, the presence and influence of other environmental and genet...

background: cancer is the second most common cause of non-accidental death in iran. geographical, racial and habitual differences have led to the variation in the incidence of cancer in different regions of this country. this study was performed to determine the incidence of cancer in the kerman province, central iran. methods: all newly diagnosed cases of cancer in the kerman province were rec...

cancer registration is an important source for measuring the burden of cancer in a population. in practice, however, quite frequently incorrect patients are registered or data items can be inaccurately recorded or not recorded at all. also the process or quality of these registrations varies among countries. in this paper, we briefly discussed some statistical techniques including; mortality an...

Background: Environmental ionizing radiation has been associated with increased cancer risk by several studies.  The Brazilian city of Poços de Caldas, MG, seats on a huge deposit of uranium, which was until recently mined.  We performed a retrospective analysis of  310 cases of patients with breast cancer, who were exposed for at least ten years to different levels of ion...

Neighbourhoods are frequently used as a measure for individuals' exposure to the food environment. However, the definitions of neighbourhoods fluctuate and have not been applied consistently in previous studies. Neighbourhoods defined from a single fixed location fail to capture people's complete exposure in multiple locations, but measuring behaviour using traditional methods can be challengin...

background: cancer is the third cause of death in iran, with an increasing incidence projected for the next decade. this study aimed to provide a disaggregated viewpoint on cancer incidence in all 22 districts of tehran, using the geographic information system (gis). identifying clusters of cancers may assist in recognizing the cause of the disease, visualizing patterns of cancer distribution, ...