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Record Nr. |
UNINA9910811547103321 |
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Autore |
Tai Bee-Choo |
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Titolo |
Regression methods for medical research / / Bee Choo Tai, David Machin |
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Pubbl/distr/stampa |
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Chichester, West Sussex, UK : , : John Wiley and Sons, , 2014 |
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©2014 |
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ISBN |
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1-118-72198-5 |
1-118-72195-0 |
1-118-72196-9 |
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Descrizione fisica |
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1 online resource (313 p.) |
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Altri autori (Persone) |
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Disciplina |
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Soggetti |
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Regression analysis |
Medicine - Research |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Regression Methods for Medical Research; Copyright; Contents; Preface; 1 Introduction; Introduction; Statistical models; Comparing two means; Linear regression; Types of dependent variables (y-variables); Some completed studies; Further reading; Technical details; Student's t-test; Linear regression; Predicting a mean value of y for a particular x; Predicting an individual's value of y for a particular x; Analysis of Variance (ANOVA); Coefficient of determination; Extending the simple linear model; Correlation; Logarithms and the exponential constant, e |
2 Linear Regression: Practical IssuesTypes of covariates (independent variables); Ordered categorical covariates; Numerically discrete covariates; Unordered categorical covariates; Verifying the assumptions; Ordered categorical covariate; Continuous covariate; Do the assumptions matter?; Precautions; Computation; Simple models; Study design; Clinical and statistical significance; Reporting; Technical details; Global tests; Ordered Normal scores; 3 Multiple Linear Regression; Linear regression: two covariates; How good is the fitted model?; Quadratic models; Multiple linear regression |
Extending the 2-covariate modelNotation; Interactions; Non-nested models; Precautions; Nested models; Collinearity; Parsimonious |
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