Results 41 to 50 of about 783,235 (315)

Multiple imputation approach for interval-censored time to HIV RNA viral rebound within a mixed effects Cox model [PDF]

open access: yes, 2018
This is the peer reviewed version of the following article: “Alarcón-Soto, Y, Langohr K., Fehér, C., García, F., and Gómez, G. (2018) Multiple imputation approach for interval-censored time to HIV RNA viral rebound within a mixed effects Cox Model ...
Alarcón Soto, Yovaninna   +4 more
core   +2 more sources

Empirical Density Estimation for Interval Censored Data

open access: yesAustrian Journal of Statistics, 2016
This paper is concerned with the nonparametric estimation of a density function when the data are incomplete due to interval censoring. The Nadaraya-Watson kernel density estimator is modified to allow description of such interval data.
Eugenia Stoimenova
doaj   +1 more source

Bayesian semiparametric inference for multivariate doubly-interval-censored data [PDF]

open access: yes, 2010
Based on a data set obtained in a dental longitudinal study, conducted in Flanders (Belgium), the joint time to caries distribution of permanent first molars was modeled as a function of covariates.
De Iorio, Maria   +3 more
core   +4 more sources

Stochastic EM algorithm for doubly interval-censored data [PDF]

open access: yesBiostatistics, 2013
In clinical trials, it is frequently of interest to estimate the time between the onset of two events (e.g. duration of response in oncology). Here, we consider the case where subjects are assessed at fixed visits but the initial event and the terminating event occur in between visits.
Dejardin, David, LESAFFRE, Emmanuel
openaire   +4 more sources

Subgroup Identification and Regression Analysis of Clustered and Heterogeneous Interval-Censored Data

open access: yesMathematics, 2022
Clustered and heterogeneous interval-censored data occur in many fields such as medical studies. For example, in a migraine study with the Netherlands Twin Registry, the information including time to diagnosis of migraine and gender was collected for ...
Xifen Huang, Jinfeng Xu
doaj   +1 more source

Variable Selection for Generalized Linear Models with Interval-Censored Failure Time Data

open access: yesMathematics, 2022
Variable selection is often needed in many fields and has been discussed by many authors in various situations. This is especially the case under linear models and when one observes complete data.
Rong Liu   +3 more
doaj   +1 more source

Maximum-Likelihood Estimation of a Log-Concave Density based on Censored Data [PDF]

open access: yes, 2014
We consider nonparametric maximum-likelihood estimation of a log-concave density in case of interval-censored, right-censored and binned data. We allow for the possibility of a subprobability density with an additional mass at $+\infty$, which is ...
Duembgen, Lutz   +2 more
core   +2 more sources

Linear regression with interval censored data [PDF]

open access: yesThe 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

Statistical methodologies for evaluation of the rate of persistence of Ebola virus in semen of male survivors in Sierra Leone

open access: yesPLoS ONE, 2022
The 2013–2016 Ebola virus (EBOV) outbreak in West Africa was the largest and most complex outbreak ever, with a total number of cases and deaths higher than in all previous EBOV outbreaks combined.
Ndema Habib   +7 more
doaj   +3 more sources

Weighted Wilcoxon-Type Rank Test for Interval Censored Data

open access: yesJournal of Applied Mathematics, 2013
Interval censored (IC) failure time data are often observed in medical follow-up studies and clinical trials where subjects can only be followed periodically, and the failure time can only be known to lie in an interval.
Ching-fu Shen   +2 more
doaj   +1 more source

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