Results 51 to 60 of about 75,980 (291)

Regression models for interval censored data using parametric pseudo-observations

BMC Medical Research Methodology, 2021
Background Time-to-event data that is subject to interval censoring is common in the practice of medical research and versatile statistical methods for estimating associations in such settings have been limited.
Martin Nygård Johansen, Søren Lundbye-Christensen, Jacob Moesgaard Larsen, Erik Thorlund Parner   +3 more
doaj   +1 more source

Modelling Censored Losses Using Splicing: a Global Fit Strategy With Mixed Erlang and Extreme Value Distributions

, 2017
In risk analysis, a global fit that appropriately captures the body and the tail of the distribution of losses is essential. Modelling the whole range of the losses using a standard distribution is usually very hard and often impossible due to the ...
Antonio, Katrien, Beirlant, Jan, Reynkens, Tom, Verbelen, Roel   +3 more
core   +1 more source

Targeted modulation of IGFL2‐AS1 reveals its translational potential in cervical adenocarcinoma

Molecular Oncology, EarlyView.
Cervical adenocarcinoma patients face worse outcomes than squamous cell carcinoma counterparts despite similar treatment. The identification of IGFL2‐AS1's differential expression provides a molecular basis for distinguishing these histotypes, paving the way for personalized therapies and improved survival in vulnerable populations globally.
Ricardo Cesar Cintra, Lucca Paolo Hsu Helmich, Daniel Rodrigues de Bastos, Laura Sichero, Patrícia Savio de Araujo‐Souza, Fabio Passetti, Luisa Lina Villa   +6 more
wiley   +1 more source

Application of inverse weighting analysis to assess the association of youth perceptions with the age of initiation of tobacco products

Frontiers in Public Health
IntroductionTo examine if perceptions of harmfulness and addictiveness of hookah and cigarettes impact the age of initiation of hookah and cigarettes, respectively, among US youth.
Folefac D. Atem, Folefac D. Atem, Meagan A. Bluestein, Baojiang Chen, Baojiang Chen, Melissa B. Harrell, Melissa B. Harrell, Melissa B. Harrell, Sarah E. Messiah, Sarah E. Messiah, Arnold E. Kuk, Adriana Pérez, Adriana Pérez   +12 more
doaj   +1 more source

The association of perceptions of harmfulness and addictiveness on the age of initiation of cigar product use among youth: Findings from the Population Assessment of Tobacco and Health (PATH) study, 2013–2017

Frontiers in Public Health, 2022
BackgroundPerceptions of cigar products' harmfulness and addictiveness in youth are associated with subsequent cigar product initiation, but their association on the age of initiation of cigar product use is unknown.MethodsThe association of perceptions ...
Baojiang Chen, Baojiang Chen, Charles E. Spells, Meagan A. Bluestein, Arnold E. Kuk, Melissa B. Harrell, Adriana Pérez, Adriana Pérez   +7 more
doaj   +1 more source

HIV dynamics and natural history studies: Joint modeling with doubly interval-censored event time and infrequent longitudinal data

, 2011
Hepatitis C virus (HCV) coinfection has become one of the most challenging clinical situations to manage in HIV-infected patients. Recently the effect of HCV coinfection on HIV dynamics following initiation of highly active antiretroviral therapy (HAART)
Hogan, Joseph W., Su, Li
core   +1 more source

Confidence Intervals from Censored Samples

The Annals of Mathematical Statistics, 1961
Suppose a random sample of size $n$ is drawn from a normal population with mean $\mu$ and standard deviation $\sigma$ and that the sample has been censored either to the right or the left. Suppose the censoring is at a fixed point of the distribution or at a pre-specified sample percentage point, or is a combination of these two types of censoring.
openaire   +2 more sources

Linear regression with interval censored data [PDF]

The Annals of Statistics, 1998
Consider the linear model \[ Y_i=\beta^{\text{tr}}Z_i+\varepsilon_i,\quad 1\leq i\leq n, \] where \(Z_i\) are known covariate vectors and \(\beta\) is an unknown parameter vector. We are interested in estimating \(\beta\) from the current status data such that \[ X_i=(\delta_i,T_i,Z_i),\quad 1\leq i\leq n, \] are observed instead of the usual \((Y_i ...
Li, Gang, Zhang, Cun-Hui
openaire   +3 more sources

Changes in Immune‐Inflammation Status and Acute Ischemic Stroke Prognosis in Prospective Cohort

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Inflammation is a critical risk factor for poor outcomes in cerebral infarction. Prior studies focused primarily on baseline inflammation status, neglecting dynamic longitudinal changes. We try to investigate the association between immune‐inflammation status alterations and stroke prognosis, and evaluated three systemic biomarkers'
Songfang Chen, Wenting Huang, Yitian Liu, Xuan Chen, Buyu Ke, Qian Shen, Hanyu Cai, Jing Sun, Yan Li, Yungang Cao, Beilei Hu, Keyang Chen   +11 more
wiley   +1 more source

Inferences for the GKME Distribution Under Progressive Type-I Interval Censoring with Random Removals and Its Application to Survival Data

Axioms
The analysis of lifetime data under censoring schemes plays a vital role in reliability studies and survival analysis, where complete information is often difficult to obtain. This work focuses on the estimation of the parameters of the recently proposed
Ela Verma, Mahmoud M. Abdelwahab, Sanjay Kumar Singh, Mustafa M. Hasaballah   +3 more
doaj   +1 more source