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Longitudinal Data Observed Over Unequal Time Intervals: Modeling Correlations In The Analysis Of Binary Outcomes Data - Couverture souple

Thwin, Soe Soe

 
9783639110142: Longitudinal Data Observed Over Unequal Time Intervals: Modeling Correlations In The Analysis Of Binary Outcomes Data
Couverture souple
ISBN 10 : 3639110145 ISBN 13 : 9783639110142
Editeur : VDM Verlag Dr. Müller, 2008

Synopsis

This monograph extends previous work on the evaluation of GEE performance in parameter estimation with correlation structure misspecification. It examines a new structure to model the correlation between binary responses observed over unequal time intervals. The proposed unequal-time correlation structure accounts for unequal intervals by fixing the correlation coefficient and interval length between the first 2 observations and by adjusting the correlations for subsequent pairs by their relative interval length. To evaluate this structure, correlated binary responses under the logistic model were generated with the unequal time correlation structure for a full range of positive correlations and strength of association under different scenarios of number of measurements, sample size and prevalence of exposure. The model was evaluated when the working correlation structure was misspecified as exchangeable, 1st order autoregressive, unstructured, or when alternating logistic regression was employed.

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

Présentation de l'éditeur

This monograph extends previous work on the evaluation of GEE performance in parameter estimation with correlation structure misspecification. It examines a new structure to model the correlation between binary responses observed over unequal time intervals. The proposed unequal-time correlation structure accounts for unequal intervals by fixing the correlation coefficient and interval length between the first 2 observations and by adjusting the correlations for subsequent pairs by their relative interval length. To evaluate this structure, correlated binary responses under the logistic model were generated with the unequal time correlation structure for a full range of positive correlations and strength of association under different scenarios of number of measurements, sample size and prevalence of exposure. The model was evaluated when the working correlation structure was misspecified as exchangeable, 1st order autoregressive, unstructured, or when alternating logistic regression was employed.

Biographie de l'auteur

Soe Soe Thwin received her MS in Epidemiology from University of Washington and PhD in Biostatistics from Boston University, USA. She is currently a statistician at the Massachusetts Veterans Epidemiologic Research and Information Center and consults for Boston University School of Medicine.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
VDM Verlag Dr. Müller
Date d'édition
2008
Langue
anglais
ISBN 10 
3639110145
ISBN 13 
9783639110142
Reliure
Broché
Nombre de pages
252
Coordonnées du fabricant
non disponible
Personne responsable
non disponible