Results 81 to 90 of about 18,301 (299)

Strong representation of the Kaplan–Meier and hazard estimators for censored data with m-widely acceptable dependence

open access: yesStatistical Theory and Related Fields
This paper investigates the asymptotic properties of the Kaplan–Meier and hazard estimators for censored survival time data. We conduct this analysis under the assumption of m-widely acceptable (m-WA) dependence, a generalized form of weak correlation ...
Ikhlasse Chebbab
doaj   +1 more source

Loss of AMBRA1 activates MAPK and angiogenesis signaling pathways in melanoma cells

open access: yesFEBS Open Bio, EarlyView.
Loss of AMBRA1 in melanoma cells activates multiple oncogenic pathways associated with tumor progression. Transcriptomic and protein network analyses revealed that AMBRA1 depletion enhances MAPK/ERK signaling, angiogenesis, TGF‐β/EMT signaling, and Wnt/axon guidance pathways.
Milad Ibrahim   +4 more
wiley   +1 more source

Cumulative hazard ratio estimation for adverse events data from two-stage dynamic treatment regimes

open access: yesFrontiers in Applied Mathematics and Statistics
Accurate analysis of adverse events in two-stage dynamic treatment regimes is complicated by the presence of competing risks, such as death, which can preclude the observation of an adverse event and introduce bias into standard survival estimates.
Sifiso Vilakati
doaj   +1 more source

Survival in the pre-senile dementia frontotemporal lobar degeneration with TDP-43 proteinopathy: effects of genetic, demographic and neuropathological variables

open access: yesFolia Neuropathologica, 2016
Factors associated with survival were studied in 84 neuropathologically documented cases of the pre-senile dementia frontotemporal dementia lobar degeneration (FTLD) with transactive response (TAR) DNA-binding protein of 43 kDa (TDP-43) proteinopathy ...
Richard A. Armstrong
doaj   +1 more source

Modified Weighted Kaplan-Meier Estimator

open access: yes, 2007
In many medical studies majority of the study subjects do not reach to the event of interest during the study period. In such situations survival probabilities can be estimated for censored observation by Kaplan Meier estimator.
Shah, Shuhrat   +2 more
core   +1 more source

Cracking the Code: Genotype–Phenotype Correlation Models in Sarcoglycanopathies

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Sarcoglycanopathies are among the most severe limb‐girdle muscular dystrophies (LGMD), though milder presentations have been described. These diseases are primarily caused by missense variants, but the limited predictability of their effect on protein maturation, complex formation, and transport has hindered reliable genotype ...
Leonela Luce   +72 more
wiley   +1 more source

Characterization of the variable cow's age at last calving as a measurement of longevity by using the Kaplan–Meier estimator and the Cox model

open access: yesAnimal, 2013
In most studies on beef cattle longevity, only the cows reaching a given number of calvings by a specific age are considered in the analyses. With the aim of evaluating all cows with productive life in herds, taking into consideration the different forms
S.L. Caetano   +7 more
doaj   +1 more source

Descriptive Statistics of Survival Data (SPSS Output of Kaplan-Meier Estimator).

open access: yes, 2016
Descriptive Statistics of Survival Data (SPSS Output of Kaplan-Meier Estimator).
Olurotimi Bankole Ajagbe (2220835)   +2 more
core   +1 more source

IV Thrombolysis Facilitates Interventional Reperfusion in Non‐Cardioembolic but Not Cardioembolic Stroke

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Intravenous thrombolysis (IVT) before thrombectomy for ischemic stroke may alter clot structure and procedural performance. We investigated how IVT relates to thrombectomy metrics across stroke etiologies. Methods We performed a time‐to‐event analysis of consecutive patients with anterior circulation large vessel occlusion (acLVO ...
Annahita Sedghi   +8 more
wiley   +1 more source

Home - About - Disclaimer - Privacy