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Many statistical methods have recently been developed for identifying subgroups of patients who may benefit from different available treatments. Compared with the traditional outcome‐modeling approaches, these methods focus on modeling interactions between the treatments and covariates while by‐pass or minimize modeling the main effects of covariates because the subgroup identification only depends...
Summary Increasingly, estimations of health care costs are used to evaluate competing treatments or to assess the expected expenditures associated with certain diseases. In health policy and economics, the primary focus of these estimations has been on the mean cost, because the total cost can be derived directly from the mean cost, and because information about total resources utilized is highly...
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