Table 2 Attributes and attribute levels
Attributes | Levels | |
|---|---|---|
1 | Ease of use/fool-proof priming | − 1 step − 2 to 3 steps − More than 4 steps to prepare your dose |
2 | Accurate and easy-to-read dose counter Precise dose counter | − Yes − No |
3 | Dose confirmation | − Taste of lactose − No taste of lactose |
4 | Hygiene of mouthpiece | − Mouthpiece can be washed, but not replaced − Mouthpiece can be replaced, but not washed − Mouthpiece can be cleaned with a dry cloth, but not washed or replaced |
5 | Flexibility of device handling Orientation of device during inhalation process | − Inhaler can be held in any position throughout inhalation process − Inhaler must be held in certain position throughout inhalation process |
6 | You can use the inhaler even when you have difficulties breathing in | − Yes − No |
7 | Costs associated with using the medication | − Current level of expenditure − Current level of expenditure + €3/month − Current level of expenditure + €6/month − Current level of expenditure + €10/month |