نتایج جستجو برای: log rank test
تعداد نتایج: 932838 فیلتر نتایج به سال:
In Semantic Role Labeling (SRL), it is reasonable to globally assign semantic roles due to strong dependencies among arguments. Some relations between arguments significantly characterize the structural information of argument structure. In this paper, we concentrate on thematic hierarchy that is a rank relation restricting syntactic realization of arguments. A loglinear model is proposed to ac...
INTRODUCTION Among patients with acute myeloid leukemia (AML), the DACO-016 randomized study showed reduction in mortality for decitabine [Dacogen(®) (DAC), Eisai Inc., Woodcliff Lake, NJ, USA] compared with treatment choice (TC): at primary analysis the hazard ratio (HR) was 0.85 (95% confidence interval 0.69-1.04; stratified log-rank P = 0.108). With two interim analyses, two-sided alpha was ...
While the commonly used log-rank test for survival times between 2 groups enjoys many desirable properties, sometimes the log-rank test and its related linear rank tests perform poorly when sample sizes are small. Similar concerns apply to interval estimates for treatment differences in this setting, though their properties are less well known. Standard permutation tests are one option, but the...
To determine the clinical significance of BCL-2 expression in Hodgkin-Reed-Sternberg (HRS) cells of classical Hodgkin disease (cHD), we correlated its expression with presenting clinical and laboratory features and failure-free survival (FFS). Eligible patients were untreated and negative for HIV-1; they had biopsyproven cHD. BCL-2 expression was determined immunohistochemically in available pr...
BACKGROUND The use of tacrolimus (TAC) in patients after heart transplantation (HTX) has increased over the last few years. AIM In this retrospective study, we evaluated the effects of a TAC (conventional and extended-release TAC)-based immunosuppressive therapy regarding rejection profile in comparison to a cyclosporine A (CSA)-based regimen in patients after HTX. METHODS The data of 233 p...
This paper concerns the Log-rank test for comparing survival curves of neonatal mortality characteristic groups in River Nile State, Sudan. In this paper, log-rank is used to compare two or more characteristics newborn associated with death after using Kaplan-Meier methods estimate and graph variable interest as (sex newborn, weight gestational age, mode delivery resident type), at hospital sta...
OBJECTIVES Comparison of the immediate and long-term results of three different extrathoracic arterial reconstruction procedures for subclavian obstructive disease. DESIGN Retrospective analysis of 51 extrathoracic subclavian artery reconstructions in 49 patients performed in a single centre over an 18-year period (mean follow-up 64 months, range 3-192). METHODS Carotid-subclavian bypass (C...
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...
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