نتایج جستجو برای: Cancer Risks
تعداد نتایج: 1015998 فیلتر نتایج به سال:
aim : this study aims to investigate some clinical and pathologic factors associated with the prognosis of patients with colon and rectum cancers separately. background : colorectal cancer is the most common cancer of the digestive system and also the fourth cause of cancer-related deaths around the world. different studies indicate that survival of patients with colorectal cancer has improved ...
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...
Introduction: Breast cancer is one of the most common cancers among women worldwide. Patients with cancer may die due to disease progression or other types of events. These different event types are called competing risks. This study aimed to determine the factors affecting the survival of patients with breast cancer using three different approaches: cause-specific hazards regression, subdistri...
Background and Objective: Colorectal cancer is the most common cancer of digestive system in Iran.The incidence of this cancer has increased in recent years.The aim of this study was to evaluate the survival rate and to define the prognostic factors in Iranian colorectal cancer patients using competing risk model. Materials and Methods: Data recorded from 1060 patients with colorectal cancer...
introduction: gail model is one of the most important models for the evaluation of breast cancer risk between us white females. according to genetic diversity, there is a possibility of affecting the efficiency of the gail model in risk assessment of breast cancer among iranian populations. in this study, the gail model efficiency in specifying the risk of breast cancer in iranian population wa...
Background: Breast cancer is one of the most important malignancies in both developed and developing countries. Objectives: To reduce the burden of this disease, the prediction of individuals at risk and implementation of efficient preventive interventions can be effective. The present study was aimed at investigating five-year and lifetime risks of the breast cancer in a rural community in Za...
Background: The aim of this study was to estimate the cancer risks and mortalities of different types induced by routine examinations of digital radiography for one year in Mazandaran province, Iran. Materials and methods: Radiation parameters and calculated entrance skin dose (ESD) values of 13 digital radiographic examinations were collected from 2340 patients at 18 high-patient-load radiogra...
Introduction One of the central questions in radiological protection is the magnitude of the risks from low doses of radiation, related to the justification and optimization of the diagnostic medical exposures. Therefore, the aim of this study was to estimate the cancer incidence and mortality risks in children of different ages, sizes, and ethnicities undergoing computed tomography examination...
Background and Objectives: The incidence of rectal cancer is increasing in developing societies, especially in younger age groups. The aim of this study was to evaluate the factors affecting the survival of patients with rectal cancer in the presence of competing risks. Methods: In this retrospective cohort study, the data of 121 patients with rectal cancer during 2001-2017 were studied. De...
introduction one of the central questions in radiological protection is the magnitude of the risks from low doses of radiation, related to the justification and optimization of the diagnostic medical exposures. therefore, the aim of this study was to estimate the cancer incidence and mortality risks in children of different ages, sizes, and ethnicities undergoing computed tomography examination...
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