Results 11 to 20 of about 212,907 (281)

Factors determining disease duration in Alzheimer's disease: a postmortem study of 103 cases using the Kaplan-Meier estimator and Cox regression. [PDF]

open access: yesBiomed Res Int, 2014
Factors associated with duration of dementia in a consecutive series of 103 Alzheimer's disease (AD) cases were studied using the Kaplan-Meier estimator and Cox regression analysis (proportional hazard model).
Armstrong RA.
europepmc   +2 more sources

Nonparametric estimation of the multivariate survivor function: the multivariate Kaplan-Meier estimator. [PDF]

open access: yesLifetime Data Anal, 2018
The Dabrowska (Ann Stat 16:1475–1489, 1988) product integral representation of the multivariate survivor function is extended, leading to a nonparametric survivor function estimator for an arbitrary number of failure time variates that has a simple ...
Prentice RL, Zhao S.
europepmc   +2 more sources

Bootstrapping the Kaplan–Meier estimator on the whole line [PDF]

open access: yesAnnals of the Institute of Statistical Mathematics, 2018
This article is concerned with proving the consistency of Efron's (1981) bootstrap for the Kaplan-Meier estimator on the whole support of a survival function. While other works address the asymptotic Gaussianity of the estimator itself without restricting time (e.g.
Dennis Dobler
openaire   +4 more sources

A Combinatoric Approach to the Kaplan-Meier Estimator

open access: yesAnnals of Statistics, 1985
The paper considers the Kaplan-Meier estimator \(F_ n^{KM}\) from a combinatoric viewpoint. Under the assumption that the estimated distribution F and the censoring distribution G are continuous, the combinatoric results are used to show that \(\int | \theta (z)| dF_ n^{KM}(z)\) has expectation not larger than \(\int | \theta (z)| dF(z)\) for any ...
exaly   +4 more sources

Sample size calculations for single‐arm survival studies using transformations of the Kaplan–Meier estimator [PDF]

open access: yesPharmaceutical statistics, 2020
In single‐arm clinical trials with survival outcomes, the Kaplan–Meier estimator and its confidence interval are widely used to assess survival probability and median survival time. Since the asymptotic normality of the Kaplan–Meier estimator is a common
K. Nagashima   +3 more
semanticscholar   +1 more source

Gene expression study of breast cancer using Welch Satterthwaite t-test, Kaplan-Meier estimator plot and Huber loss robust regression model

open access: yesJournal of King Saud University: Science, 2022
Objective: Breast Cancer (BC) is one of the deadliest diseases in women, causing thousands of deaths annually despite the advent of high-throughput genomic platforms in the recent past.
Sajjad Karim   +7 more
semanticscholar   +1 more source

Doubly robust estimator of risk in the presence of censoring dependent on time-varying covariates: application to a primary prevention trial for coronary events with pravastatin

open access: yesBMC Medical Research Methodology, 2020
Background In the presence of dependent censoring even after stratification of baseline covariates, the Kaplan–Meier estimator provides an inconsistent estimate of risk.
Takuya Kawahara   +2 more
doaj   +1 more source

Inferences for current chronic graft-versus-host-disease free and relapse free survival

open access: yesBMC Medical Research Methodology, 2022
This paper provides the methodologies of a new summary curve that measures the dynamic outcome following allogenic hematopoietic cell transplantation.
Xu Zhang   +2 more
doaj   +1 more source

Private and Collaborative Kaplan-Meier Estimators

open access: yesProceedings of the 23rd Workshop on Privacy in the Electronic Society, 2023
Kaplan-Meier estimators are essential tools in survival analysis, capturing the survival behavior of a cohort. Their accuracy improves with large, diverse datasets, encouraging data holders to collaborate for more precise estimations. However, these datasets often contain sensitive individual information, necessitating stringent data protection ...
Shadi Rahimian   +3 more
openaire   +2 more sources

Estimation of the Distribution of Duration of Breastfeeding from Cross-Sectional Data: Some Methodological Issue.

open access: yesJournal of Biostatistics and Epidemiology, 2021
Background: Duration of breastfeeding is an important health indicator of mother and child. There are various indirect epidemiological methods available to estimate the duration of breastfeeding from cross sectional data.
Anup Kumar   +4 more
doaj   +1 more source

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