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author = "LESAFFRE, Emmanuel"
<< < 5 6 7 8 9 > >>

Found 90 documents, displaying page 6 of 9

A sensitivity analysis for informative dropout: a local influence approach

Author(s) : VERBEKE, Geert , LESAFFRE, Emmanuel , MOLENBERGHS, Geert , Kenward, Michael
Description :
Repository : Document Server@UHasselt
Language(s) : English

A sensitivity analysis for informative dropout: a local influence approach

Author(s) : VERBEKE, Geert , LESAFFRE, Emmanuel , MOLENBERGHS, Geert , THIJS, Herbert , Kenward, Michael
Description :
Repository : Document Server@UHasselt
Language(s) : English

Analysis of caries experience taking inter-observer bias and variability into account

Author(s) : LESAFFRE, Emmanuel , Mwalili, S.M. , Declerck, D.
Description : In larger oral health surveys, clinical measurements are often obtained using several examiners. This raises the issue of inter-observer variability in measurement. Often, the problem is dealt with by reporting kappa values obtained in a calibration exercise. In the present study, the limitations of...
Repository : Document Server@UHasselt
Language(s) : English

Modelling tooth emergence data based on multivariate interval-censored data

Author(s) : Bogaerts, K. , Leroy, R. , LESAFFRE, Emmanuel , Declerck, D.
Description : Studies on emergence of (permanent) teeth are published regularly in the dental literature. Besides descriptive statistics (mean or median values) on emergence times, comparisons between boys and girls are of interest. Gender comparisons are intersubject analyses, but also intrasubject questions, li...
Repository : Document Server@UHasselt
Language(s) : English

Conditional linear mixed models

Author(s) : VERBEKE, Geert , Spiessens, B. , LESAFFRE, Emmanuel , Brant, L.J.
Description :
Repository : Document Server@UHasselt
Language(s) : English

Group sequential methods for an ordinal logistic random-effects model under misspecification

Author(s) : Spiessens, B. , LESAFFRE, Emmanuel , VERBEKE, Geert , Kim, K.M.
Description : Interim analyses in clinical trials are planned for ethical as well as economic reasons. General results have been published in the literature that allow the use of standard group sequential methodology if one uses an efficient test statistic, e.g., when Wald-type statistics are used in random-effec...
Repository : Document Server@UHasselt
Language(s) : English

On the variability of covariate adjustment: experience with Koch's method for evaluating the absolute difference in proportions in randomized clinical trials

Author(s) : LESAFFRE, Emmanuel , Bogaerts, K. , Li, X. , Bluhmki, E.
Description : recently Koch et al. suggested an interesting approach for covariate adjustment in randomized clinical trials. Here we report our experience with the approach in Assent II, a large randomized trial comparing 30-day mortality rates of two thrombolytic treatments. Data from the Gusto-I study and a re...
Repository : Document Server@UHasselt
Language(s) : English

Flexible modelling of the covariance matrix in a linear random effects model

Author(s) : LESAFFRE, Emmanuel , Todem, D. , VERBEKE, Geert , Kenward, M.
Description :
Repository : Document Server@UHasselt
Language(s) : English

A Bayesian ordinal logistic regression model to correct for interobserver measurement error in a geographical oral health study

Author(s) : LESAFFRE, Emmanuel , Mwalili, Samuel M. , Declerck, Dominique
Description : We present an approach for correcting for interobserver measurement error in an ordinal logistic regression model taking into account also the variability of the estimated correction terms. The different scoring behaviour of the 16 examiners complicated the identification of a geographical trend in ...
Repository : Document Server@UHasselt
Language(s) : English

The detection of residual serial correlation in linear mixed models

Author(s) : VERBEKE, Geert , LESAFFRE, Emmanuel , Brant, L.J.
Description :
Repository : Document Server@UHasselt
Language(s) : Undetermined
<< < 5 6 7 8 9 > >>

Found 90 documents, displaying page 6 of 9