Prediction with Differential Covariate Classification: Illustrated by Covariate Classification in Medical Risk Assessment
协变量分类差异下的预测：医疗风险评估中的例证
A common practice in evidence-based decision-making uses estimates of conditional probabilities P(y|x) obtained from research studies to predict outcomes y on the basis of observed covariates x. Given this information, decisions are then based on the predicted outcomes. Researchers commonly assume that the predictors used in the generation of the evidence are the same as those used in applying the evidence: i.e., the meaning of x in the two circumstances is the same. This…