نتایج جستجو برای: random effect model
تعداد نتایج: 3687722 فیلتر نتایج به سال:
Objective: The main objective of this research was estimation of genetic parameters for five consecutive measurements of egg weights in Isfahan fowl using multi trait model and random regression models. Methods: The statistical models included generation-hatch as a fixed effect, weeks of age as a covariate and additive genetic and individual permanent environmental effects as random effects. Th...
Prediction models for clustered data: comparison of a random intercept and standard regression model
BACKGROUND When study data are clustered, standard regression analysis is considered inappropriate and analytical techniques for clustered data need to be used. For prediction research in which the interest of predictor effects is on the patient level, random effect regression models are probably preferred over standard regression analysis. It is well known that the random effect parameter esti...
Background and purpose: A low concentration of albumin is a predictor of mortality in end-stage renal disease. The aim of this study was to assess the factors influencing albumin serum amongst hemodialysis patients using random effects model. Materials and methods: In a retrospective cohort study, 297 hemodialysis patients (137 women and 160 men, mean age: 58.3 ± 15.86 and 59.1± 17.80 years,...
Objective: The main objective of this research was estimation of genetic parameters for five consecutive measurements of egg weights in Isfahan fowl using multi trait model and random regression models. Methods: The statistical models included generation-hatch as a fixed effect, weeks of age as a covariate and additive genetic and individual permanent environmental effects as random effects. Th...
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