http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Designing a robust evaluation of health service innovation
an observational study comparing the outcomes of patients referred to integrated care teams with a retrospectively matched control group
Using our evaluation of a health care intervention as a case study, we discuss some of the study design choices we made. We explain the statistical issue of regression to the mean and show, with a practical example, why a before-and-after analysis can give misleading results. We introduce the concept of a counterfactual analysis as a more robust methodology and describe how we selected a similar, matched control group and compared their outcomes with those of the intervention group using multivariable regression. We discuss the limitations of our study design, in particular the risk of unobserved confounding, and how we took these limitations into account when drawing conclusions from our results.
Includes bibliographical references and index.
Évaluation des résultats (Soins médicaux)
SAGE Research Methods Cases : Medicine and Health