Table 3.
Tolerability Results (N=47)
| Skyn | SCRAM CAM | Mobile Diary | Test Statistic | P | |
|---|---|---|---|---|---|
| Life disruptions* | |||||
| Physical discomfort | 2 (4%) | 25 (53%) | N/A§ | McNemar’s test | <.001 |
| Social discomfort | 0 (0%) | 19 (40%) | N/A§ | McNemar’s test | <.001 |
| Interference with daily activities | |||||
| Work | 0 (0%) | 5 (11%) | N/A§ | McNemar’s test | .06 |
| Exercise | 1 (2%)† | 18 (38%) | N/A§ | McNemar’s test | <.001 |
| Sleep | 1 (2%)† | 15 (32%) | N/A§ | McNemar’s test | .001 |
| Ability to concentrate | 0 (0%) | 4 (9%) | N/A§ | McNemar’s test | .13 |
| Clothing choice | 0 (0%)† | 24 (51%) | N/A§ | McNemar’s test | <.001 |
| Noticeable in any way | 6 (13%)† | 24 (51%) | N/A§ | McNemar’s test | <.001 |
| Opportunity cost (1–5 scale) | 1.8 (1.1)† | 3.0 (1.4) | 1.7 (1.0)† | χ2 (2) = 34.3 | <.001 |
| Overall burden (1–5 scale)¶ | 1.6 (0.5)†‡ | 2.8 (0.9) | 2.7 (0.3) | χ2 (2) = 59.4 | <.001 |
| Adverse effects (1–10 scale) | |||||
| Itching | 1.6 (1.4) | 2.9 (2.1) | N/A | W = 3.4 | .001 |
| Sweating | 1.5 (1.1) | 3.0 (2.0) | N/A | W = 4.3 | <.001 |
| Skin Irritation | 1.6 (1.5) | 3.6 (2.8) | N/A | W = 4.0 | <.001 |
| Marks on skin | 7 (15%)† | 22 (47%) | N/A | McNemar’s test | <.001 |
| Willing to wear in the future (1–5 scale) | 4.3 (0.9)†‡ | 3.7 (1.2) | 3.7 (1.0) | χ2 (2) = 17.3 | <.001 |
Values given as mean (SD)
N (%) answering “agree” or “strongly agree”
Different than SCRAM CAM (P < .01)
Different than diary (P < .01)
These items were previously (Barnett et al., 2017) designed for tracking devices and often unapplicable to the diaries. For example, a diary would not cause physical discomfort. Therefore, diaries were evaluated by a separate set of questions we designed (ease of completion, ease of remembering to complete, enjoyability, burdensomeness).
Calculated as average of 5-point responses to prior rows and diary-specific questions mentioned in previous footnote.
The possible inconvenience of removing the Skyn when interacting with water was not directly queried, but only 4 / 47 participants (9%) noted water as an inconvenience on free responses.