Background: With the innovative idea of Central Vein Catheter at the end of 80’s, treatment of hemodialysis patients faced a significant change. Nowadays CVC’s are widely used and as a result CVC related complications have become important for surgeons. In this study survival and complications associated with CVC’s have been studied in End Stage Renal Disease (ESRD) patients referring t...

the following question poped up: is there any relationship between iranian high school efl learners reading comprehension and listening comprehension? then the following null hypothesis (ho) was developed to the test the above, mentioned question. "there is no relationship between high school efl learners reading comprehension and listening comprehension. for nearly 16 weeks, the experimental g...

Abstract: Background and purpose: The survival rate of gastric cancer patients has significantly increased during the last decades because of the advances in this type of cancer treatment. The purpose of the current study was to examine the survival levels of gastric cancer through Weibull regression and its affective causes. Materials and methods: In this research, the records and person...

Introduction: Insertion or deletion of a guanine in -1607 at promoter region of matrix metalloproteinase-1 enzyme creates two allelic types for this gene in the population: 2G and 1G, respectively. 2G allele contains an extra binding site for ETS transcription factors that this may increase the level of gene expression. Therefore, aim of this study was investigation of the single Guanine insert...

Background and purpose: One of the most common methods used to estimate the effects of explanatory variables on survival time, is Cox semi parametric model. However, under certain circumstances, accelerated failure time parametric models are superior to the Cox model. The purpose of this study was to assess the efficiency of parametric and semi-parametric models in survival analysis of patients...

Introduction: Ovarian cancer is the 6th most common cancer and the 7th cause of death from cancer in women all around the world. The aim of this study was to determine the related factors with survival of ovarian cancer among women in Fars Province, southern Iran. Methods: In a survival analysis study, the recorded data at cancer registry center of Shiraz university of medical sciences related ...