Table 3.
Feature and task ratingsa from participant observation in phases 1, 2, and 3 (detailed results in Multimedia Appendix 6).
| Feature | Phase 1b, mean (range) | Phase 2c, mean (range) | Phase 3d, mean (range) | Phase 3e, mean (range) |
| Open screens | 1.1 (1-2) | 1 (1) | 1.6 (1-3) | N/Af |
| Enter body weight | 1.1 (1-2) | 1.2 (1-2) | 1.1 (1-2) | 1.4 (1-2) |
| Enter blood pressure | 1.1 (1-2) | 1.6 (1-3) | 1.1 (1-2) | 1.4 (1-3) |
| Enter dialysate | 1.1 (1-2) | 1.2 (1-2) | 1.1 (1-2) | 1.8 (1-3) |
| View metrics | 1.3 (1-2) | 1 (1) | 1.1 (1-2) | 1.7 (1-3) |
| Interpret metrics | 1.1 (1-2) | 1.2 (1-2) | 1.1 (1-2) | N/A |
| Communications | 1 (1) | 1 (1) | 1 (1) | 1.2 (1-3) |
| User incentives | 1.1 (1-2) | 1.2 (1-2) | 1.2 (1-3) | 1.9 (1-3) |
aRating of task or feature: 1=good, 2=neutral, and 3=not good.
bGroup 1 using the chronic kidney disease–peritoneal dialysis app with near-field communication or optical character recognition data entry; participants 1 to 5.
cGroup 2 using the chronic kidney disease–peritoneal dialysis app with near-field communication or optical character recognition data entry; participants 6 to 10.
dGroup 1 and 2 using the chronic kidney disease–peritoneal dialysis app with manual entry; participants 1 to 10, excluding 7.
eGroup 1 and 2 using logbook; participants 1 to 10, excluding 7.
fN/A: not applicable.