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Study dropouts and time since recruitment, by dropout reason.
| Patient characteristics | Overwhelmed at instruction (n=2) | Severe illness (n=3) | Overwhelmed during usage (n=1) | |
| Time since recruitment for each patient (days) | 0, 0 | 3, 6, 9 | 13 | |
| Strata ratioa, n |
|
|
|
|
|
|
Not familiar | 1 | 2 | 0 |
|
|
Familiar | 1 | 1 | 1 |
| Group, n |
|
|
|
|
|
|
Feedback | 1 | 0 | 1 |
|
|
Basic | 1 | 3 | 0 |
aRatio of the number of patients that were not familiar to those who were familiar with smartphone camera usage.
