ABSTRACT Background Critically ill patients requiring intensive care unit (ICU) admission suffer from muscle weakness that persists for years. Recently, altered RNA expression was documented in muscle of former ICU patients 5 years after critical illness that suggested disrupted mitochondrial function, disturbed lipid metabolism and fibrosis, of which ...
Ceren Uzun Ayar +4 more
wiley +1 more source
Stabilizing Inference in Dirichlet Regression via Ridge‐Penalized Model
ABSTRACT We propose a penalized Dirichlet regression framework for modeling compositional data, using a softmax link to ensure that the mean vector lies on the simplex and to avoid log‐ratio transformations or zero replacement. The model is formulated in a GLM‐like setting and incorporates an ℓ2$$ {\mathrm{\ell}}_2 $$ (ridge) penalty on the regression ...
Andrea Nigri
wiley +1 more source
Joint analysis of dispersed count‐time data using a bivariate latent factor model
Abstract In this study, we explore parameter estimation for a joint count‐time data model with a two‐factor latent trait structure, representing accuracy and speed. Each count‐time variable pair corresponds to a specific item on a measurement instrument, where each item consists of a fixed number of tasks.
Cornelis J. Potgieter +3 more
wiley +1 more source
ABSTRACT For binary outcome models, an endogeneity correction based on nonlinear rank‐based transformations is proposed. Identification without external instruments is achieved under one of two assumptions: Either the endogenous regressor is a nonlinear function of one component of the error term, conditional on the exogenous regressors, or the ...
Alexander Mayer, Dominik Wied
wiley +1 more source
Asymptotic Properties of the ISE in Nonparametric Regressions with Serially Correlated Errors
Xianyi Wu, Jinhong You, Xian Zhou
semanticscholar +1 more source
Unified Estimation Method for Partially Linear Models With Nonmonotone Missing at Random Data. [PDF]
Zhao Y.
europepmc +1 more source
Re-weighted estimation of the transition probability density for second-order diffusion processes. [PDF]
Li Y, Wang Y, Tang M.
europepmc +1 more source
Power and Sample Size Calculation for Multivariate Longitudinal Trials Using the Longitudinal Rank Sum Test. [PDF]
Ghosh D +3 more
europepmc +1 more source
Statistical Inference for High-Dimensional Heteroscedastic Partially Single-Index Models. [PDF]
Fang J, Tian Z.
europepmc +1 more source
Statistical inference for heterogeneous treatment effect with right-censored data from synthesizing randomized clinical trials and real-world data. [PDF]
Mao G, Yang S, Wang X.
europepmc +1 more source

