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Tutorial 3 Linear regression.pdf - Tutorial 3: MAB7202...

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Tutorial 3: MAB7202 Linear regressionLilian Giibwa, MBIO
Tutorial outlineConfounding and Interaction (Effect modification)RecapBy hand scenariosSTATA output model interpretation
RecapAnalysis of a continuous variable (Different scenarios):Descriptive level-Means with their standard deviations, medians withinterquartile range (IQR), …….Relationship between a continuous var and either (a cts or categorical with 2or (3 or more levels))correlation, simple linear regression, t-test and ANOVAMultivariable analysisMultivariable linear regressionANCOVA modelin the case of effect modification / interactionWhat is your understanding of confounding?What is your understanding of interaction?
ConfoundingBy handCrude measure of association (MoA) but one suspects that theassociation between x and y may have been distorted by any other orother predictors (potential confounders)Obtain (two or more) strata -specific MoAs and compare them

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Term
Fall
Professor
N/A
Tags
Statistics, Regression Analysis, Statistical terminology, Lilian Giibwa

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