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Biometry (Latest Articles)
Latest indexed articles for 'Biometry'
Articles 21 to 30 of 200:
13 Aug 2009 
In medical and health studies, heterogeneities in clustered count data have been traditionally modeled by positive random effects in Poisson mixed models; however, excessive zeros often occur in clustered medical and health count data. In this ...
rec_pub_19462420-modelling-heterogeneity-clustered-count-data-extra-zeros-using.htm
Performance in population models for count data, part II: a new SAEM algorithm.
11 Aug 2009 Analysis of count data from clinical trials using mixed effect analysis has recently become widely used. However, algorithms available for the parameter estimation, including LAPLACE and Gaussian quadrature (GQ), are associated with certain ...
rec_pub_19680795-performance-population-models-count-data-ii-new-saem-algorithm.htm
Performance in population models for count data, part I: maximum likelihood approximations.
2 Aug 2009 There has been little evaluation of maximum likelihood approximation methods for non-linear mixed effects modelling of count data. The aim of this study was to explore the estimation accuracy of population parameters from six count models, using two ...
rec_pub_19653080-performance-population-models-count-data-maximum-likelihood.htm
31 Jul 2009 OBJECTIVE: The objective of this study was to compare three methods with which to determine the skeletal maturity of children. MATERIALS AND METHODS: The methods were Greulich & Pyle's atlas method based on hand-wrist radiographs (1959), and the ...
rec_pub_19649580-the-development-cervical-vertebrae-indicator-skeletal-maturity.htm
30 Jul 2009 PURPOSE: To analyze the process of emmetropization and determine the potential for progression of refractive error following refractive surgery. METHODS: The prevalence of refractive error was retrospectively examined in 46,384 consecutive patients ...
rec_pub_19714800-age-refraction-46-000-patients-potential-predictor-refractive.htm
Biometrical journal and reproducible research.
30 Jul 2009 
rec_pub_19688756-biometrical-journal-reproducible-research.htm
30 Jul 2009
rec_pub_19655311-letter-editor.htm
A generalized log-rank-type test for comparing survivals with doubly interval-censored data.
30 Jul 2009 In doubly interval-censored data, the survival time of interest is defined as the elapsed time between an initial event and a subsequent event, but the occurrences of both events cannot be observed exactly. Instead, only right- or interval-censored ...
rec_pub_19650058-a-generalized-log-rank-type-test-comparing-survivals-doubly-interval.htm
Rounding strategies for multiply imputed binary data.
30 Jul 2009 Multiple imputation (MI) has emerged in the last two decades as a frequently used approach in dealing with incomplete data. Gaussian and log-linear imputation models are fairly straightforward to implement for continuous and discrete data, ...
rec_pub_19650057-rounding-strategies-multiply-imputed-binary-data.htm
Interpreting statistical evidence with empirical likelihood functions.
30 Jul 2009 There has been growing interest in the likelihood paradigm of statistics, where statistical evidence is represented by the likelihood function and its strength is measured by likelihood ratios. The available literature in this area has so far ...
rec_pub_19650056-interpreting-statistical-evidence-empirical-likelihood-functions.htm
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