Table 2.
Patient survey outcomes.
| Statementa | Start, median (IQR) | End, median (IQR) | Significance (P value) |
| Q1. I am experienced with using smartphones. | 5 (4-5) | N/Ac | — |
| Q2. Using innovations in health care is normal. | 4 (3-5) | N/A | — |
| Q3. The FEV1b measurement device looks nice. | N/A | 4 (3-5) | — |
| Q4. The FEV1 measurement device is easy to use. | N/A | 4 (2-4) | — |
| Q5. The manual of the FEV1 measurement device was clear. | N/A | 4 (3-4) | — |
| Q6. Measuring my FEV1 at home is new for me (innovative). | 4 (4-5) | N/A | — |
| Q7. I should be able to measure my FEV1 for a longer period of time. | 4 (4-5) | N/A | — |
| Q8. Measuring my FEV1 at home is a good addition to my daily asthma care. | 4 (4-5) | 4 (4-5) | .83 |
| Q9. The FEV1 measurements will provide me with more insights into my disease. | 4 (4-5) | 4 (3.75-4) | .20 |
| Q10. Measuring my FEV1 at home will cost a lot of time. | 2 (2-2.5) | 2 (2-3) | .23 |
| Q11. I am glad that I am able to check my FEV1 by myself. | 4 (4-5) | 4 (3-4.25) | .34 |
| Q12. I would only measure my FEV1 when I experience symptoms. | 2 (2-3) | 3 (2-4) | .33 |
| Q13. Measuring my FEV1 regularly will help me to better handle my disease. | 4 (3-5) | 4 (3-4) | .13 |
| Q14. The home measurements of FEV1 will make me insecure. | 2 (1-2) | 1.5 (1-2) | .49 |
| Q15. The home measurements of FEV1 will give me stress. | 2 (1-2) | 2 (1-2.25) | .42 |
| Q16. I only want to know my FEV1 when it’s not going well. | 2 (1.5-2.5) | 2 (1-3) | .27 |
| Q17. I want to decide myself how often I measure my lung function. | 3 (3-4) | 3 (2.75-4) | .86 |
| Q18. I want to receive feedback on my home measurements. | 4 (3-4) | 4 (3-4.25) | >.99 |
| Q19. I wouldn’t mind to fill out a short symptom survey if my FEV1 is lower than expected. | 4 (4-5) | 4 (4-4) | >.99 |
| Q20. I would like to receive reminders in the online asthma clinic to measure my FEV1. | 4 (3.5-4.5) | 4 (4-5) | .37 |
| Q21. The graphical presentation of my FEV1 measurements is useful. | N/A | 4 (3-4) | — |
| Q22. If I don’t succeed to measure my FEV1 at home, I know whom to contact. | N/A | 4 (4-5) | — |
| Q23. I don’t worry as long as I feel good, even if my FEV1 is lower than expected. | N/A | 3 (3-4) | — |
| Q24. I wouldn’t mind if my health care professionals can see my home measurements. | 4 (4-5) | 4 (4-5) | .48 |
| Q25. I would feel controlled by my health care professionals if they can see my home measurements. | 2 (1-3) | 2 (1-2.25) | .21 |
aResponses were collected on a 5-point Likert scale, where 1=strongly disagree; 2=disagree; 3=neutral; 4=agree; and 5=strongly agree.
bFEV1: forced expiratory volume in 1 second.
cN/A: not applicable.