Assessing the Use of Retrospective Databases in Conducting Economic Evaluations of Drugs: The Case of Asthma
When evaluating drug substances, the traditional clinical study setting does not allow scope for observing real-life behaviour since all alternative actions are determined beforehand. However, a study based on prospective or retrospective databases containing real-life data can examine how patients and physicians behave in a real-world setting and can investigate the relationship between the introduction of a drug and the amount of healthcare used in actual practice. We reviewed the quality and potential policy application of published retrospective database studies in which an economic evaluation of the use of drugs in asthma was conducted. A search in literature databases found 16 such studies, which were reviewed and evaluated according to a published checklist. No article fulfilled all the criteria for a
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