abstractbackground: the survival rate of preterm and low-birth-weight (lbw) infants depends on various factors such as birth weight, gestational age, and quality of care. the present study aimed at evaluating the survival rate of preterm and lbw infants, predictive factors, and the risk of mortality in three training hospitals of mashhad and tabriz cities.methods: this prospective, cohort study...

Background: Breast milk is the most suitable nutrition for the neonates. Breast milk and breastfeeding duration can contribute to decreased mortality rate, intestinal bleeding, and various neonatal diseases (e.g., digestive and respiratory diseases). It can also reduce the risk of diabetes and obesity in childhood and adulthood. Therefore, the estimation of breastfeeding duration and recognitio...

background:the present study compared the differences between survivals of patients with colorectal cancer according to their ethnicity adjusted for other predictors of survival. methods: in this prospective cohort study patients were followed up from definite diagnosis of colorectal cancer to death. totally, 2431 person-year follow-ups were undertaken for 1127 colorectal cancer patients once e...

Background & Objectives: Colon cancer is currently of high incidence and mortality rate. Identifying the factors influencing its prognosis can be very beneficial to its clinical treatment. Recent studies have shown that lymph nodes ratio can be considered as an important prognostic factor. The aim of the present study is to investigate the effect of this factor on the prognosis of the ...

Background & Aims: Renal transplantation is the best therapeutic option for End Stage Renal Disease (ESRD). The aim of this study was to determine the graft survival rate of renal transplantation in patients who have been transplanted from live donor in Shiraz Transplant Research Center, Shiraz, Iran. Methods: In a survival analysis study, organ survival rate after kidney transplantation from...

Background and aims: The pandemic of AIDS is a global emergency and one of the biggest challenges in social and individual life. This study aimed to evaluate the survival time of HIV patients and its effective factors. Methods: This historical cohort study was conducted on the individuals infected with HIV in Fars province, south of Iran, during 2006 to 2...

Background and aims: Chronic kidney disease (CKD) is a public health challenge worldwide, with adverse consequences of kidney failure, cardiovascular disease (CVD), and premature death. Chronic kidney disease leads to the end stage of renal disease (ESRD), if late/not diagnosed. Competing risk modeling is a major issue in Epidemiology research. In Epidemiology study, sometimes inappropriate met...

We consider Bayesian nonparametric inference in the right-censoring survival model, where modeling is made at level of hazard rate. derive posterior limiting distributions for linear functionals hazard, and then ‘many’ simultaneously appropriate multiscale spaces. As an application, we Bernstein–von Mises theorems cumulative functions, which lead to asymptotically efficient confidence bands the...