. 2019 Sep 24;7(9):e13725. doi: 10.2196/13725

Table 1.

Quantitative assessment of wearable monitor comfort.

Item	Descriptive, mean (SD)	Correlation with time worn		Attrition status
		R value	P value	Did not drop out, mean (SD)	Dropped out, mean (SD)	Comparison
		R value	P value	Did not drop out, mean (SD)	Dropped out, mean (SD)	t test (df)	P value

I was worried about how I looked when I wore the device.	1.87 (2.26)	−0.14	.45	1.93 (2.29)	1.33 (2.31)	0.42 (2.44)	.71
I felt tense or on edge because I was wearing the device.	1.59 (2.05)	−0.04	.82	1.66 (2.13)	1.00 (1.00)	0.94 (4.24)	.40
I felt strange wearing the device.	2.91 (2.67)	−0.19	.26	2.65 (2.35)	5.00 (4.40)	−1.05 (3.22)	.36
I felt anxious wearing the device.	1.63 (2.22)	0.07	.73	1.78 (2.29)	0.33 (0.58)	2.61 (12.25)	.02
The device was uncomfortable to wear.	5.23 (2.90)	−0.49^a	.001^a	4.53 (2.60)^a	8.86 (1.07)^a	−7.30^a (22.64)	.001^a
I could feel the device on my wrist.	7.28 (2.62)	−0.26	.08	6.87 (2.63)^a	9.57 (0.79)^a	−5.24^a (33.11)	.001^a
The device interfered with my movement.	2.35 (2.55)	−0.13	.47	2.04 (2.13)	3.83 (3.87)	−1.10.(5.67)	.31
The device made it hard to sleep at night.	3.53 (3.50)	−0.07	.68	3.50 (3.38)	3.67 (4.46)	−0.09.(6.12)	.93
The device interfered with parts of my day.	3.15 (3.20)	−0.31	.08	2.67 (2.95)	5.33 (3.67)	−1.66.(6.51)	.14
I worried about taking care of the device.	3.51 (3.28)	0.02	.90	3.59 (3.20)	3.00 (4.12)	0.31 (4.73)	.77
I liked wearing the device.	3.60 (2.96)	0.30	.05	3.66 (2.97)	3.29 (3.15)	0.29 (8.10)	.78
Other people ask about the device.	4.46 (3.27)	0.33	.04	4.69 (3.14)	2.80 (4.09)	1.00 (4.70)	.37

^aValues are significant after Bonferroni correction (0.05/24=0.002).