Results 51 to 60 of about 970,960 (297)

Time Toxicity in Wilms Tumor: Quantifying the Burden of Healthcare Interaction in the First Year After Diagnosis

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Wilms tumor (WT) treatment imposes a significant time burden on patients and their families. Time toxicity is a patient‐centered metric that quantifies the burden of healthcare interaction. We sought to define time toxicity in the first year after diagnosis of WT and hypothesized that it would increase as tumor stage and treatment ...
Caleb Q. Ashbrook   +6 more
wiley   +1 more source

Adaptive two-stage inverse sampling design to estimate density, abundance, and occupancy of rare and clustered populations.

open access: yesPLoS ONE, 2021
Sampling rare and clustered populations is challenging because of the effort required to find rare units. Heuristically, a practitioner would prefer to discontinue sampling in areas where rare units of interest are apparently extremely sparse or absent ...
Mohammad Salehi, David R Smith
doaj   +1 more source

Two-stage sampled learning theory on distributions

open access: yes, 2014
We focus on the distribution regression problem: regressing to a real-valued response from a probability distribution. Although there exist a large number of similarity measures between distributions, very little is known about their generalization performance in specific learning tasks.
Zoltán Szabó 0001   +3 more
openaire   +3 more sources

Heterogeneity in the Global Practice of Central Nervous System Staging in Pediatric Acute Lymphoblastic Leukemia

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Central nervous system (CNS) involvement in childhood acute lymphoblastic leukemia (ALL) is assessed by cell counting and cytomorphology from cerebrospinal fluid (CSF) and is used for treatment stratification worldwide. The ratio of “CNS2” patients in clinical trials ranges from 3% to 40%, with unclear prognostic significance ...
Laura Almási   +14 more
wiley   +1 more source

Treatment of unit non-response in two-stage sampling with partial replacement of units

open access: yesStatistica, 2007
Three separate estimators, for the estimation of the population total, based on two-stage sampling design on two successive occasions with partial replacement of secondary stage units only have been presented.
Fabian C. Okafor
doaj   +1 more source

Comparisons of Some Two Stage Sampling Methods

open access: yesThe Annals of Mathematical Statistics, 1966
1. Introduction. The use of multistage sampling procedures has been of great value in providing a solution to the problem of estimating a parameter with a prescribed precision. There are several two-stage methods available so that either (A) the estimate of a parameter has a specified variance, or (B) a (1 - a) confidence interval placed on a parameter
Goldman, Aaron S., Zeigler, R. K.
openaire   +3 more sources

Emapalumab for Immune Effector Cell‐Associated Hemophagocytic Lymphohistiocytosis‐Like Syndrome Following CD19‐Directed CAR‐T in Two Patients With B‐ALL: Clinical and Biomarker Correlates

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Immune effector cell‐associated hemophagocytic lymphohistiocytosis‐like syndrome (IEC‐HS) is a life‐threatening hyperinflammatory toxicity distinct from cytokine release syndrome (CRS) and neurotoxicity following chimeric antigen receptor T‐cell (CAR‐T) therapy. In a single‐institution retrospective cohort of pediatric and young adult patients
Thomas J. Galletta   +6 more
wiley   +1 more source

Efficacy and Safety Analysis of Roxarestat in Regulating Renal Anemia in Patients on Maintenance Hemodialysis

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Objective To compare the efficacy and safety of roxarestat versus recombinant human erythropoietin (rhEPO) in the management of renal anemia in patients undergoing maintenance hemodialysis. Methods This was a prospective, open‐label, randomized controlled trial.
Lingling Chen, Junjie Zhu, Qiaonan Ge
wiley   +1 more source

A JACKKNIFE VARIANCE ESTIMATOR UNDER TWO-FASES SAMPLING WITH UNEQUAL PROBABILITY UN ESTIMADOR JACKKNIFE DE VARIANZA EN MUESTREO EN DOS FASES CON PROBABILIDADES DESIGUALES

open access: yesRevista Colombiana de Estadística, 2007
We propose a jackknife variance estimator under two-fases sampling with unequal probability. We assume that the parameters of interest and its stimators can be expressed as a function of means.
Pacheco Mario, Martínez Guillermo
doaj  

Inference for Two-Stage Sampling Designs

open access: yesJournal of the Royal Statistical Society Series B: Statistical Methodology, 2020
SummaryTwo-stage sampling designs are commonly used for household and health surveys. To produce reliable estimators with associated confidence intervals, some basic statistical properties like consistency and asymptotic normality of the Horvitz–Thompson estimator are desirable, along with the consistency of associated variance estimators.
Guillaume Chauvet, Audrey-Anne Vallée
openaire   +1 more source

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