نتایج جستجو برای: cancer incidence
تعداد نتایج: 1113894 فیلتر نتایج به سال:
background: previous studies indicate a high incidence of digestive cancers along southern parts of caspian sea including mazandaran province. the present study was conducted to further investigate time to occurrence, age distribution and possible risks associated with the incidence time of digestive cancers in the above regions. methods: for this purpose the data of digestive cancer incidenc...
background: growth of the world population alongside an increasing adoption of cancer-causing behaviors,particularly smoking and various environmental factors. a variety of cancers data in specialgeographic areas can help define medical programs for treatment and screening of high-risk groups.since cancer types has not been reported within districts and neighbourhoods of tehran city so far,this...
Background and Aim: Skin cancer is one of the most common human cancers. Its incidence rate trend is increasing in Iran. The aim of this study was to investigate the prevalence, incidence rate and geographical distribution of skin cancer to identify the high risk areas in Kurdistan province, Iran. Methods: In this descriptive cross-sectional study, the collected data were analyzed using v...
background: gastric cancer is the fifth most common cancer in the world and the third leading cause of death from cancer worldwide. this study aims to assess the epidemiology of gastric cancer in ardabil province, iran. methods: this was a descriptive cross-sectional study performed on 1056 patients with gastric cancer registered in the ardabil cancer registry. data were collected by a checklis...
background: in iran colorectal cancer (crc) incidence varies among various places. but we do not have any validate data that deeply explored the difference of crc in kerman province by national average. the aim of this study was to evaluate the incidence of colon cancer within a 12-year period in kerman province and to find whether the incidence of crc in kerman compared with the total incidenc...
conclusions overall, cancer incidence rates had increased in both sexes. many factors were responsible, such as changes in lifestyle, environmental factors, increased life expectancy, improvements in the registration systems, and declining mortality rates due to early detection and treatment. the results of this study provided useful information for the prediction of changes in the incidence an...
Background: Thyroid cancer is the most common form of endocrine cancer. The age and gender-adjusted incidence of thyroid cancer has increased faster than that of any other malignancy in recent years, with the increased incidence seen in both genders, all ethnic backgrounds and all sizes of thyroid cancer. It appears that the rise in thyroid cancer incidence is not only due to medical surveill...
Background and purpose: Colorectal cancer is the most common gastrointestinal cancer throughout the world. Knowledge about the disease incidence and its changes over time can be useful in planning for the prevention and cause detection, therefore this study aimed at investigating the incidence of gastric cancer in Iran. Materials and methods: This study was a reanalysis of existing data. We us...
Background and Objective: Breast cancer is one of the most common cancers in women worldwide. This study was conducted to analyze the factors related to survival of patients with breast cancer using two models of Cox proportional specific-cause and sub-distribution models (direct modeling of cumulative incidence). These patients were at the competitive risk of death from breast cancer and also ...
in this thesis, we consider a mathematical model of cancer with completely unknown parameters. we study the stability of critical points which are biologically admissible. then we consider a control on the system and introduce situations at which solutions are attracted to critical points and so the cancer disease has auto healing. the lyapunov stability method is used for estimating the un...
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