Prescription data as a tool in pharmacotherapy audit (I). General considerations.

This article discusses how prescription data that are available from pharmacies can be used as a tool to support the improvement of prescribing behaviour. For the optimal use of prescription data in pharmacotherapeutic audit, the specific aim of the audit meeting must be clear. Next, appropriate measures (quality of drug choice, volume, cost) have to be selected for the presentation and discussion of prescribing. For several aims of audit meetings, suggestions for adequate measures are given. For each stage of behavioural change the article describes why and how prescription data can provide a useful contribution. Finally, recommendations are given regarding prerequisites for the optimal use of prescription data. Important factors are that the prescription data should sufficiently cover the physicians' patient population, information regarding the extent of repeat prescribing is needed, and the prescribing of drugs with multiple indications can cause difficulties with the interpretation of the graphs. With this information in mind, feedback on prescribing can be tailored to the audit groups' needs and targeted to the intervention that is pursued.