Despite its proven efficacy in improving symptoms and reducing exacerbations, many patients with asthma are not fully adherent to their steroid inhaler. Suboptimal adherence leads to poorer clinical outcomes and increased health service utilisation, and has been identified as a contributing factor to a third of asthma deaths in the UK. Reasons for non-adherence vary, and a variety of interventions have been proposed to help people improve treatment adherence.
The studies we found suggest that various strategies can help people with asthma take their inhaler better, compared with “control” (e.g. usual asthma care). However, many of these studies were quite different from one another, and we are not certain about whether people will find that their asthma is improved as a result of this approach.
Link to full review here