Search Results - subject:"Linear mixed models"

Long-term survivor mixture model with random effects: application to a multi-centre clinical trial of carcinoma

Yau, KKW; Ng, ASK - 2001

A mixture model incorporating long-term survivors has been adopted in the field of biostatistics where some individuals may never experience the failure event under study. The surviving fractions may be considered as cured. In most applications, the survival times are assumed to be independent....

Persistent link: https://www.econbiz.de/10009448034

Using bootstrap method to evaluate the estimates of nicotine equivalents from linear mixed model and generalized estimating equation

Liang, Qiwei; Li, Huajiang; Mendes, Paul; Roethig, Hans; … - In: Journal of Applied Statistics 36 (2009) 4, pp. 453-463

Twenty-four-hour urinary excretion of nicotine equivalents, a biomarker for exposure to cigarette smoke, has been widely used in biomedical studies in recent years. Its accurate estimate is important for examining human exposure to tobacco smoke. The objective of this article is to compare the...

Persistent link: https://www.econbiz.de/10004992284

Bayesian assessment of times to diagnosis in breast cancer screening

Armero, Carmen; Lopez-Quilez, Antonio; Lopez-Sanchez, Rut - In: Journal of Applied Statistics 35 (2008) 9, pp. 997-1009

positive mammogram until a confirmatory diagnosis is carried out in hospital. Generalized linear mixed models are used to …

Persistent link: https://www.econbiz.de/10005492161

Examining heterogeneity in implied equity risk premium using penalized splines

Wegener, Michael; Kauermann, Göran - In: AStA Advances in Statistical Analysis 92 (2008) 1, pp. 35-56

Persistent link: https://www.econbiz.de/10005598065

Estimation of the Force of Infection from Current Status Data Using Generalized Linear Mixed Models

Namata, Harriet; Shkedy, Ziv; Faes, Christel; Aerts, Marc; … - In: Journal of Applied Statistics 34 (2007) 8, pp. 923-939

involve fixed and random effects, allows us to use generalized linear mixed models techniques to estimate both the cumulative …, the age-specific rate at which susceptible individuals contract infection, can be estimated using generalized linear mixed … models (McCulloch & Searle, 2001). Modelling the dependency of the force of infection on age by penalized splines, which …

Persistent link: https://www.econbiz.de/10005639688

Mixed model prediction and small area estimation

Jiang, Jiming; Lahiri, P. - In: TEST: An Official Journal of the Spanish Society of … 15 (2006) 1, pp. 1-96

Persistent link: https://www.econbiz.de/10005759551

Generalized multilevel structural equation modeling

Rabe-Hesketh, Sophia; Skrondal, Anders; Pickles, Andrew - In: Psychometrika 69 (2004) 2, pp. 167-190

Persistent link: https://www.econbiz.de/10005603161

Cafarelli, Barbara; Pollice, Alessio; Castrignano', … - Dipartimento di Scienze Economiche, Matematiche e … - 2004

The knowledge of hydraulic properties of soil is necessary in many environmental applications and land planning. These properties, however, are difficult to determine and often they demand high labour costs, for which the tendency is to estimate them on the base of other more easily measurable...

Persistent link: https://www.econbiz.de/10005265177