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System administrator details of SMS (short message service) texts sent and answered by patients.
| Patient | Total days | SMS failure, n (%) | Patient failure to answer SMS when sent, n (%) | |
| In 2 hours of SMS | Not at all | |||
| 2 | 74 | 5 (7) | 5 (7) | 5 (7) |
| 3 | 79 | 1 (1) | 3 (4) | 3 (4) |
| 4 | 62 | 0 (0) | 4 (7) | 3 (5) |
| 5 | 69 | 0 (0) | 14 (20) | 10 (15) |
| 6 | 120 | 0 (0) | 8 (7) | 6 (5) |
| 7 | 79 | 0 (0) | 4 (5) | 4 (5) |
| 8 | 80 | 1 (1) | 32 (41) | 17 (22) |
| 9 | 57 | 0 (0) | 2 (4) | 0 (0) |
| 10 | 75 | 4 (5) | 8 (11) | 8 (11) |
