Results 21 to 30 of about 2,724,979 (306)

Warm season escape to deep: habitat range and seasonal movement of sand tiger shark Carcharias taurus in Ogasawara Archipelago, Japan

open access: yesEndangered Species Research
Temperature-dependent seasonal migrations are well-known in the sand tiger shark Carcharias taurus in Australia and the USA; however, its behavioral ecology in Japan remains unclear due to limited data.
A Nagahara   +10 more
doaj   +1 more source

Survival Analysis Part IV: Further concepts and methods in survival analysis [PDF]

open access: yesBritish Journal of Cancer, 2003
Most analyses of survival data use primarily Kaplan-Meier plots, logrank tests and Cox models. We have described the rationale and interpretation of each method in previous papers of this series, but here we have sought to highlight some of their limitations. We have also suggested alternative methods that can be applied when either the data or a given
Clark, T.G.   +3 more
openaire   +5 more sources

The performance of multiple imputation for missing covariate data within the context of regression relative survival analysis. [PDF]

open access: yes, 2008
Relative survival assesses the effects of prognostic factors on disease-specific mortality when the cause of death is uncertain or unavailable. It provides an estimate of patients' survival, allowing for the effects of other independent causes of death ...
Belot, Aurélien   +4 more
core   +1 more source

Recommendation Algorithm Based on Survival Action Rules

open access: yesApplied Sciences
Survival analysis is widely used in fields such as medical research and reliability engineering to analyze data where not all subjects experience the event of interest by the end of the study.
Marek Hermansa   +3 more
doaj   +1 more source

Pan-cancer analysis reveals that G6PD is a prognostic biomarker and therapeutic target for a variety of cancers

open access: yesFrontiers in Oncology, 2023
BackgroundDespite accumulating evidence revealing that Glucose-6-phosphate dehydrogenase (G6PD) is highly expressed in many tumor tissues and plays a remarkable role in cancer tumorigenesis and progression, there is still a lack of G6PD pan-cancer ...
Tao Zeng   +11 more
doaj   +1 more source

Informed Bayesian survival analysis

open access: yesBMC Medical Research Methodology, 2022
AbstractBackgroundWe provide an overview of Bayesian estimation, hypothesis testing, and model-averaging and illustrate how they benefit parametric survival analysis. We contrast the Bayesian framework to the currently dominant frequentist approach and highlight advantages, such as seamless incorporation of historical data, continuous monitoring of ...
Bartoš, F., Aust, F., Haaf, J.M.
openaire   +6 more sources

Nonparametric Inference in Mixture Cure Models

open access: yesProceedings, 2018
A completely nonparametric method for the estimation of mixture cure models is proposed. Nonparametric estimators for the cure probability (incidence) and for the survival function of the uncured population (latency) are introduced.
Ana López-Cheda   +3 more
doaj   +1 more source

On Null Hypotheses in Survival Analysis [PDF]

open access: yesBiometrics, 2019
Abstract The conventional nonparametric tests in survival analysis, such as the log-rank test, assess the null hypothesis that the hazards are equal at all times. However, hazards are hard to interpret causally, and other null hypotheses are more relevant in many scenarios with survival outcomes.
Mats J. Stensrud   +2 more
openaire   +4 more sources

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen   +23 more
wiley   +1 more source

Genomic Diversity and Clinical Variability in Pediatric Primary Cutaneous Anaplastic Large Cell Lymphoma: A Case Series

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Primary cutaneous anaplastic large cell lymphoma (pcALCL) is a rare pediatric CD30‐positive T‐cell lymphoproliferative disorder with an excellent prognosis, but its genomic drivers are poorly defined. We report three children with skin‐limited disease demonstrating striking molecular heterogeneity, including NPM::ALK, NUP214::FRK, and a novel ...
Shoshana Greenberger   +7 more
wiley   +1 more source

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