نتایج جستجو برای: survival function
تعداد نتایج: 1505729 فیلتر نتایج به سال:
background and objective: cystinosis is a rare inherited disease that leads to renal failure. fanconi syndrome is the major renal involvement in cystinosis patients. renal transplantation is the treatment of choice in cystinosis children with end-stage renal disease (esrd). the study aimed to assess the outcome of renal transplantation in iranian children with cystinosis. methods: this retrosp...
Abstract Background and purpose: Coronary artery disease is one of the major causes of death worldwide and analysis of survival data is important in these patients. The Cox model not only calculates the hazard function but also introduces other significant variables. Materials and methods: 128 patients referred to Mazandaran Heart Center from 2005 to 2007 and treated by angioplasty were fol...
In this paper, we propose an approach for the nonparametric estimation of the conditional survival function of a time to failure‎ ‎given a time-varying covariate under interval-censoring for the failure time. Our strategy consists in‎ ‎modeling the covariate path with a random effects model, ‎as is done in the degradation and joint longitudinal and survival data modeling&lrm...
High tibial osteotomy (HTO) is a well established technique for the treatment of medial osteoarthritis ofthe knee with varus malalignment. The outcome of total knee arthroplasty (TKA) after HTO remains uncertain.The aim of this paper is to revise the literature with the aim of answering the following question: Does a previous (HTO)influence the long-term function or survival of a TKA?. The sea...
HR Khalkhali [1] , MSc E Hajizadeh [2] , PhD A Ghafari Moghadam [3] , MD A Kazemnezhad [4] , PhD Morad Hajiyan [5] , MSc Received: 21 April, 2009 Accepted: 22 July, 2009 Abstract Background & Aims: Chronic Allograft Dysfunction is a major concern for graft loss in Renal Transplant Recipients. This paper investigated the waiting time and death-censored graft survival in renal transplant ...
Background and Objectives: Given the advances in treatment and use of new therapies in kidney transplantation, there is always a need to evaluate the survival of graft and patient and to investigate the effect of new therapies. Therefore, the purpose of this study was to assess the survival rate of kidney graft and patient in patients transplanted in Shahid Hasheminejad hospital during 2008-201...
background the number of patients with gastric cancer is growing worldwide. in iran (in 2009) of the 74067 new cases of cancer, 6886 were diagnosed as having gastric cancer. this study was conducted to investigate 5-year survival rate for gastric cancer in yazd province, central iran. methods in this descriptive study, the medical records of patients with gastric cancer were collected from the ...
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: including multivariate survival data can be pointed competing risks data. there are various methods to analyze such data such as semi-parametric methods of cause-specific hazard function, and cumulative incidence function. the aim of this study was to deploy competing risks model to analyze the determinants of patients with liver cirrhosis. materials and methods: during the one-year...
Purpose: To investigate the effect of lithium chloride (LiCl) on survival and functional activity of in vitro cultured human granulosa cells (GCs). Materials and Methods: GCs were isolated from follicular fluid of women undergoing IVF/ICSI. After RBCs removal, GCs were plated in a medium containing varying concentrations of LiCl including 1, 2 and 5mM for two weeks period. A culture without Li...
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