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. 2021 Aug 26;5(8):e26227. doi: 10.2196/26227

Table 4.

Satisfaction with the wearable, continuous vital-sign monitoring device and its measures (n=11).

Survey item Score, mean (SD)

All measures of the device Blood pressure measure ECGa measure SpO2b measure
Individual itemc

The shape of the wearable device is adequate 4.18 (0.60) 4.36 (0.81) 4.18 (0.60) 4.27 (0.65)

The size of the wearable device is adequate 4.36 (0.50) 4.36 (0.81) 4.27 (0.65) 4.27 (0.79)

The weight of the wearable device is adequate 4.36 (0.50) 4.36 (0.67) 4.27 (0.65) 4.18 (0.75)

The location of the part implementing the function is appropriate 4.36 (0.50) 4.36 (0.67) 4.18 (0.60) 4.27 (0.79)

It is convenient to operate 4.36 (0.67) 4.45 (0.69) 4 (1.10) 4.45 (0.69)

It works stably 4.18 (0.60) 4.27 (0.79) 4.27 (0.65) 4.45 (0.69)

No discomfort when eating food 4.00 (1.18) 3.18 (1.66) 3.55 (1.51) 3.55 (1.51)

No discomfort when going to the bathroom 3.00 (1.67) 2.27 (1.85) 3.55 (1.51) 3.27 (1.42)

No discomfort when moving 3.27 (1.56) 2.45 (1.81) 3.55 (1.51) 3.45 (1.51)

No discomfort when sleeping 3.73 (1.19) 3.36 (1.69) 3.64 (1.50) 3.55 (1.21)

No difficulty in connecting the device without assistance N/Ad N/A 4.18 (0.75) N/A

When attaching or moving the sensor sticker, there was no strain on the skin N/A N/A 3.64 (1.50) N/A

No difficulty connecting the SpO2 device cup to the finger without assistance N/A N/A N/A 4.45 (0.69)

Willing to use a home-based wearable device with similar performance in the future 3.91 (1.14) 3.91 (1.22) 3.91 (1.22) 4.18 (0.75)
All itemse

Expected score for the wearable device before using it 76.36 (22.92) 85.45 (13.68) 76.00 (21.58) 85.27 (11.39)

Evaluation score for the wearable device after actually using it 89.36 (9.67) 90.55 (10.55) 85.00 (20.12) 91.36 (7.78)

aECG: electrocardiogram.

bSpO2: blood oxygen saturation.

cSurvey items were rated on a 5-point Likert scale, ranging from 1 (strongly disagree) to 5 (strongly agree).

dN/A: not applicable; this survey item did not pertain to either the device itself or to the indicated measure.

eParticipants responded using a scale where the maximum score was 100 points.