نتایج جستجو برای: survival analysis
تعداد نتایج: 3074356 فیلتر نتایج به سال:
Background & Aim: Rhabdomyosarcoma is the most frequent soft tissue tumor in children with prevalence of 5-8% among childhood cancers. The survival of patients are related to some factors such as primary site of tumor, histology, stage of disease, early diagnosis and treatment. The survival rate of these patients has significantly increased since the 1970s. Considering the variety of report...
Background and purpose: Hospital Length of Stay (LoS) is a good indicator of the quality of hospital care. The purpose of this study was to identify the best standard models for survival analysis to determine the factors affecting the length of hospital stay in burn patients. Materials and methods: In this cross-sectional study, the hospital records of 460 burn patients hospitalized in Sari Sh...
Background: One of the key objectives is to update knowledge in order to develop treatment and care recommendations based on research findings. The purpose of the present meta-analysis was to compare the survival rate of narrow dental implants (NDI) with standard dental implants (SDI). Methods: The international databases targeted for conducting a broad search included PubMed (Medline), Sco...
background : gastric cancer is the one of the most prevalent reason of cancer-related death in the world. survival of patients after surgery involves identifying risk factors. there are various models to detect the effect of risk factors on patients’ survival. the present study aims at evaluating these models. methods : data from 330 gastric cancer patients diagnosed at the iran cancer institut...
Introduction: Kidney transplantation is the best treatment for patients with advanced kidney diseases. The aim of this study was to determine the rate of transplanted kidney survival and compare the efficiency of Cox semi-parametric model with the parametric models in determination of survival effective factors. Method: This is a historic cohort study including the information of 381 ESRD pati...
Survival of Premature and Low Birth Weight Infants: A Multicenter, Prospective, Cohort Study in Iran
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...
acknowledge the importance of e-commerce to their countries and to survival of their businesses and in creating and encouraging an atmosphere for the wide adoption and success of e-commerce in the long term. the investment for implementing e-commerce in the public sector is one of the areas which is focused in government‘s action plan for cross-disciplinary it development and e-readiness in go...
in this paper, by using the survival models, survival functions for the time from birth to the event of using formula (i.e. the time that baby in fed by breast milk) in urban and rural areas of takestan (iran, winter 1998) are reported. later the relation between the mentioned time and some factors are also discussed. the kaplan-meire method and cox regression are used in this paper as well. 48...
background: the study was designed to assess the role of preoperative neutrophil, lymphocyte, and neutrophil?lymphocyte ratio (nlr) in predicting survival outcomes of abo?incompatible liver transplantation (lt). materials and methods: we retrospectively collected the demographic and clinical characteristics of 71 patients with end?stage liver cirrhosis following abo?incompatible lt in this stu...
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