Bias analysis for misclassification in a multicategorical exposure in a logistic regression model |
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| Authors: | Yaqing Liu Juxin Liu Fuxi Zhang |
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| Institution: | 1. Sasktel and TRlabs, Canada;2. Department of Mathematics and Statistics, University of Saskatchewan, Canada;3. School of Mathematical Sciences, Peking University, China |
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| Abstract: | We derive the expressions of asymptotic biases when ignoring the misclassification in a multicategory exposure. For a model with a misclassified exposure variable only, we provide a general conclusion on the direction of the biases under nondifferential misclassification assumption. To better understand the bias formulas, we use a numerical example. |
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| Keywords: | Misclassification Nondifferential misclassification Bias Multicategorical exposure Logistic regression |
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