Parametric modelling of cost data in medical studies.

@article{Nixon2004ParametricMO,
  title={Parametric modelling of cost data in medical studies.},
  author={Richard Nixon and Simon Giles Thompson},
  journal={Statistics in medicine},
  year={2004},
  volume={23 8},
  pages={1311-31}
}
The cost of medical resources used is often recorded for each patient in clinical studies in order to inform decision-making. Although cost data are generally skewed to the right, interest is in making inferences about the population mean cost. Common methods for non-normal data, such as data transformation, assuming asymptotic normality of the sample mean or non-parametric bootstrapping, are not ideal. This paper describes possible parametric models for analysing cost data. Four example data… CONTINUE READING

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