Table 1.
Outcomes of contact attempts
| Outcome | Chatbot (N = 467) | Telephone (N = 468) | Difference, % (95% CI) | P-value |
|---|---|---|---|---|
| First contact attempts, N (%) | ||||
| Delivered | 259 (55.5)a | 333 (71.2)b | −15.7 (−21.8, −9.6) | <.001 |
| Answered | 42 (9.0)c | 120 (25.6)d | −19.8 (−26.7, −13.0) | <.001 |
| Second contact attempts, N (%) | ||||
| Delivered | 225 (48.2)a | 224 (47.9)b | 0.3 (−6.1, 6.7) | .92 |
| Answered | 16 (3.4)c | 50 (10.7)d | −7.3 (−10.5, −4.0) | <.001 |
| First or second contact attempt, N (%) | ||||
| Delivered | 267 (57.2)a | 337 (72.0)b | −14.8 (−20.9, −8.8) | <.001 |
| Answered | 58 (12.4)c | 160 (34.2)d | −21.8 (−27.0, −16.5) | <.001 |
a–d
See Methods for definitions.