Inhaler devices: Do patients have a preference and does it make a difference?

Abstract

The aim of this study was to assess participants perceptions and preferences for inhaler devices; and the relationship of inhaler technique to the decision making process. A mixed-methods approach including a semi-structured interview, Patient Satisfaction and Preference Questionnaire (PASAPQ) and inhalation technique assessment were employed. A total of 25 participants with at least one inhaler were recruited. The interviews analyzed qualitatively. In addition, each participant received a score for PASAPQ in regards to satisfaction with performance, satisfaction with convenience and overall satisfaction. Participants’ inhalation technique was assessed. Two matrices were generated to identify any patterns of association between participants perception from qualitative interviews, with participants satisfaction and preference (PASAPQ) with regards to correct and incorrect use of inhalers. Triangulation of data revealed that there did not appear to be a relationship between patient satisfaction with inhaler device, preference, inhalation technique and level of choice in decision making. There are other factors influencing patient opinions of inhaler devices rather than physical features of inhalers including the level of asthma control, effectiveness of medication in relieving asthma symptoms and length of time of use of inhalers. Participants did not differentiate the device from medication and this affected not only their perception about inhaler devices but also their perception about inhalation technique. This research further highlights the lack of understanding of the relevant role of inhaler devices in asthma management.