background& objective:  the prevalence and annual incidence of end stage renal disease  among 60 million iranians is about 15000 and 3175 (53 patients per million), respectively. the first renal transplantation was performed in shiraz, iran in 1967. iran has the most successful renal transplant program in the middle east  region. the renal transplant activity of the country has reached 24 renal...

Background: Lung cancer is one of the most common cancers and the leading cause of death due to cancer in the world. It has the highest mortality rate compared to breast, prostate, and other cancers. Different factors can be effective in the survival of lung cancer patients. The present study has evaluated survival and its related factors. Materials and Methods: The present study was performed...

background: gastric cancer is the second leading cause of cancer death. the aim of this study was to determine the survival rate affected by risk factors in patients with gastric adenocarcinoma. methods: we performed this retrospective cohort study on patients diagnosed with gastric adenocarcinoma during 2005-2012 in hamadan, iran. all patients with pathological diagnosis enrolled in the study....

patients and methods this retrospective cohort study included 405 renal transplant patients from kerman university of medical sciences hospital, kerman, iran from 2004 to 2010. kaplan-meier method was used to estimate survival rates of patients, and time-dependent cox regression was used to examine the effect of allograft failure on patient survival. results during 4.06 years (median) of follow...

Background and Objectives: In survival analysis, using the Cox model to determine the effective factors requires the assumptions whose failure of leads to biased results. The aim of this paper was to determine the factors affecting the survival of metastatic gastric cancer patients using the non-parametric method of Randomized Survival Forest (RSF) model and to compare its result with the Cox m...