GEYS, Helena

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GEYS, Helena
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helena.geys@uhasselt.be
 
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Publications

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Internal UHasselt:  RENARD, Didier

Results 1-18 of 18 (Search time: 0.005 seconds).

Issue DateTitleContributor(s)TypeCat.
12005Meta-analytic validation with binary outcomesRENARD, Didier; GEYS, HelenaBook SectionB2
22005Applying concepts of generalizability theory on clinical trial data to investigate sources of variation and their impact on reliabilityVANGENEUGDEN, Tony; LAENEN, Annouschka; GEYS, Helena; RENARD, Didier; MOLENBERGHS, GeertJournal ContributionA1
32004Applying linear mixed models to estimate reliability in clinical trial data with repeated measurementsVANGENEUGDEN, Tony; LAENEN, Annouschka; GEYS, Helena; RENARD, Didier; MOLENBERGHS, GeertJournal ContributionA1
42004Prentice's approach and the meta-analytic paradigm: a reflection on the role of statistics in the evaluation of surrogate endpointsALONSO ABAD, Ariel; MOLENBERGHS, Geert; BURZYKOWSKI, Tomasz; RENARD, Didier; GEYS, Helena; SHKEDY, Ziv; TIBALDI, Fabian; CORTINAS ABRAHANTES, Jose; BUYSE, MarcJournal ContributionA1
52004A pairwise likelihood approach to estimation in multilevel probit modelsRENARD, Didier; MOLENBERGHS, Geert; GEYS, HelenaJournal ContributionA1
62003Validation of biomarkers as surrogates for clinical endpointsBUYSE, Marc; VANGENEUGDEN, Tony; BIJNENS, Luc; RENARD, Didier; BURZYKOWSKI, Tomasz; GEYS, Helena; MOLENBERGHS, GeertBook SectionB3
72003Validation of a longitudinally measured surrogate for a time-to-event endpointRENARD, Didier; GEYS, Helena; MOLENBERGHS, Geert; BURZYKOWSKI, Tomasz; BUYSE, Marc; VANGENEUGDEN, Tony; BIJNENS, LucJournal ContributionA1
82002Statistical challenges in the evaluation of surrogate endpoints in randomized trialsMOLENBERGHS, Geert; BUYSE, Marc; GEYS, Helena; RENARD, Didier; BURZYKOWSKI, Tomasz; ALONSO ABAD, ArielJournal ContributionA1
92002Challenges in the methodology for the validation of surrogate endpoints in randomized trialsMOLENBERGHS, Geert; BUYSE, Marc; GEYS, Helena; RENARD, Didier; BURZYKOWSKI, TomaszProceedings PaperC2
102002Validation of surrogate endpoints in multiple randomized clinical trials with discrete outcomesRENARD, Didier; GEYS, Helena; MOLENBERGHS, Geert; BURZYKOWSKI, Tomasz; BUYSE, MarcJournal ContributionA1
112001Methodology for the validation of surrogate endpoints in multiple randomized experimentsMOLENBERGHS, Geert; ALONSO ABAD, Ariel; BURZYKOWSKI, Tomasz; CORTINAS ABRAHANTES, Jose; GEYS, Helena; RENARD, Didier; SHKEDY, Ziv; TIBALDI, Fabian; BUYSE, MarcProceedings PaperC2
122001Methodology of the validation of surrogate endpoints in multiple randomized experimentsMOLENBERGHS, Geert; ALONSO ABAD, Ariel; BURZYKOWSKI, Tomasz; CORTINAS ABRAHANTES, Jose; GEYS, Helena; RENARD, Didier; SHKEDY, Ziv; TIBALDI, Fabian; BUYSE, MarcProceedings PaperC2
132001Validation of surrogate endpoints in multiple randomized clinical trials with failure-time endpointsBURZYKOWSKI, Tomasz; MOLENBERGHS, Geert; BUYSE, Marc; GEYS, Helena; RENARD, DidierJournal ContributionA1
142001Pesticides and mortality from hormone-dependent cancersJANSSENS, Jaak; Van Hecke, Etienne; GEYS, Helena; BRUCKERS, Liesbeth; RENARD, Didier; MOLENBERGHS, GeertJournal ContributionA1
152000Validation of surrogate endpoints in multiple randomized clinical trials with failure-time endpointsBURZYKOWSKI, Tomasz; MOLENBERGHS, Geert; BUYSE, Marc; GEYS, Helena; RENARD, DidierProceedings PaperC1
162000Statistical validation of surrogate endpoints: problems and proposalsBUYSE, Marc; MOLENBERGHS, Geert; BURZYKOWSKI, Tomasz; RENARD, Didier; GEYS, HelenaJournal ContributionA1
172000The validation of surrogate endpoints in meta-analyses of randomized experimentsBUYSE, Marc; MOLENBERGHS, Geert; BURZYKOWSKI, Tomasz; RENARD, Didier; GEYS, HelenaJournal ContributionA1
181999The validation of surrogate endpoints in meta-analyses of randomized experimentsBUYSE, Marc; MOLENBERGHS, Geert; BURZYKOWSKI, Tomasz; RENARD, Didier; GEYS, HelenaProceedings Paper