Table 4.
Means and SDs for text message responsivity (%) across categories of text messages received intermittently during the intervention.
| Week | Medication reminders, n; mean (SD) |
Appointment reminders, n; mean (SD) |
Goal motivation, n; mean (SD) |
Goal progress, n; mean (SD) |
Patient experience, n; mean (SD) |
Trivia, n; mean (SD)a |
| Week 1 | 17; 78% (44%) | —b | — | — | — | 26; 89% (33%) |
| Week 2 | — | — | 26; 73% (45%) | — | 25; 80% (41%) | — |
| Week 3 | — | — | — | — | — | — |
| Week 4 | 17; 67% (50%) | 2; 50% (71%) | — | 26; 69% (47%) | — | — |
| Week 5 | — | 2; 50% (71%) | — | — | 26; 65% (49%) | — |
| Week 6 | — | 1; 0% (0%) | 26; 62% (50%) | — | 1; 100% (0%) | — |
| Week 7 | — | 2; 50% (71%) | — | — | 8; 50% (53%) | — |
| Week 8 | 17; 78% (44%) | 1; 100% (0%) | — | 26; 62% (50%) | — | — |
| Week 9 | — | — | — | — | — | — |
| Week 10 | — | 1; 0% (0%) | 26; 65% (49%) | — | 9; 78% (44%) | — |
| Week 11 | — | 5; 60% (55%) | — | — | — | 26; 62% (50%) |
| Week 12 | 17; 67% (50%) | 6; 58% (49%) | — | 26; 54% (51%) | 12; 92% (29%) | — |
| Week 13 | — | 5; 70% (45%) | — | — | 1; 0% (0%) | — |
| Week 14 | — | 4; 50% (58%) | 25; 60% (50%) | — | 1; 100% (0%) | — |
| Week 15 | — | 4; 50% (58%) | — | — | — | 25; 52% (51%) |
| Week 16 | 17; 67% (50%) | 5; 50% (50%) | — | 14; 57% (51%) | — | — |
aSignificant linear decrease across weeks.
bNot applicable.