Table 1 Most often used terms to describe the different concepts in literature
Concept | Times inhalers characteristics belonging to concept were mentioned in the literature search results | Examples of terms used in the literature to describe the concepts |
|---|---|---|
Appearance | 56 | Attractiveness, design, colour, shape, size, compact, discrete, weight, portable and durable, protected from moisture |
Ease of use, of which: | 43 | Operating, ease of inhalation, inhaler use quickness, handling, convenience |
Ease of holding and comfort | 11 | Mouthpiece fits the lips, feel in the hand, easy to hold, ease of carrying |
Ease of preparation of the dose | 8 | Ease to unpack and assemble, ease to open the inhaler and prepare it for inhalation |
Feedback to indicate correct inhalation and dosage | 16 | Easily readable and precise dose counter |
Ease of learning to use | 14 | Easy-to-follow instructions, easy-to-read leaflet, short training time required |
Hygiene | 10 | Hygienic and easy to clean |
Environmentally friendly | 4 | Inhaler and pack being environmentally friendly |