Background and objective: The 'audit cycle' is a fundamental part of improving clinical performance. For this to be effective, improvements made must be sustained. We observed that the prescription of Oxygen is often poor. Our aim was to audit Oxygen prescription before and after an educational intervention, and then again 4 years on. We hypothesized that improvements made immediately after the intervention would not be sustained over a longer period of time. Conclusions: The rate of Oxygen prescription improves significantly after an educational intervention; however, this improvement is not sustained. This observation is likely reflected in a range of areas where the audit cycle is used to improve performance. It is important to be aware of this potential for regression to ensure that improvements are maintained over time.
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