Table 3. Reasons for using apps and home-monitoring devices.

Reason for using apps and home-monitoring devices.	%	N
My Doctor/Clinical Nurse Specialist/Other healthcare professional recommended it	14%	9
It makes me feel more in control of my illness	40%	25
It helps me to quantify when I feel unwell	40%	25
It helps me monitor the progression of my disease	30%	19
I feel it picks up changes earlier that can be acted on	22%	14
It gives me reassurance	46%	29
It helps me know when to call for help	24%	15
It helps me know when to use my home oxygen	24%	15
Not applicable—I do not use any apps or home-monitoring devices	22%	14

The additional comments collected in the survey gave further insights regarding the respondents’ experiences using home-monitoring devices. These data underwent thematic analysis and are discussed below within a framework of enablers and barriers to home spirometry.