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. 2024 Jan 8;3(1):e0000318. doi: 10.1371/journal.pdig.0000318

Table 2. Home devices in use.

Study Variables and Responses % N
Uses devices to monitor vital signs 86% 76
Does not use devices to monitor vital signs 14% 12
Type of devices used to monitor vital signs
Finger probe oxygen saturation monitor (singularly) 49% 35
Heart rate monitor (singularly) 10% 7
Combined finger probe saturation and heart rate monitor 61% 43
Blood pressure monitor 52% 37
Advice on how to use devices that monitor vital signs
I was given advice by my GP 11% 8
I was given advice by my local support group 7% 5
The pharmacy explained to me 3% 2
I read information online and/or watched an online video 31% 22
I was given advice by the ILD nurse specialist 13% 9
I have had no advice/education and would welcome some 13% 9
I have not felt the need for any advice/education 25% 18
Frequency of SpO2 monitor
I regularly measure my oxygen saturations regardless of how I feel 42% 30
I measure my oxygen saturations if my symptoms are bad 47% 34
I measure my saturations when exerting myself (e.g. going up stairs/ exercising) 29% 21
I measure my readings after exertion whilst I am recovering 29% 21
I measure my saturations when I am at rest 21% 15
I wear a device throughout the day that is constantly measuring my saturations 6% 4
SpO2 results match symptoms
When I am feeling more breathless or unwell my saturations are often low 56% 40
My saturations are low, but my symptoms are stable 7% 5
My saturations are low when I am exerting myself 61% 43
When I feel breathless and/or unwell my saturations can be within normal range. 24% 17
Spirometer (Aspect of lung function monitored)
Forced vital capacity (FVC) 88% 14
Forced expiratory volume in the first second (FEV1) 63% 10
Flow volume loop 44% 7
FEV1 /FVC ratio 44% 7
Confidence of spirometer technique
Very unconfident 25% 4
Somewhat unconfident 6% 1
Somewhat confident 38% 6
Very confident 31% 5
Advice on interpreting spirometry readings
Advice received 35% 6
No advice received 65% 11
I’m unsure 35% 27
Position when you take measurements with home-monitoring devices
Sitting or resting 72% 46
Walking inside 33% 21
Walking outside 28% 18
Cycling 9% 6
Running 0% 0
Swimming 0% 0
Exercise / rowing machine 8% 5
Gardening 6% 4
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