Total (n, alerts) | Intervention group (n, alerts) | Control group (n, alerts) | |
---|---|---|---|
Alerts received by local public health agency study participants | 1969 | 942 | 1027 |
Year 1 | 801 | 409 | 392 |
Year 2 | 1168 | 533 | 635 |
Alerts checked for data misclassification, data stream issues, or error-related issues | 305 (15%) | 224 (24%) | 81 (8%) |
Year 1 | 193 (24%) | 156 (38%) | 37 (9%) |
Year 2 | 112 (10%) | 68 (13%) | 44 (7%) |
Alerts checked for epidemiological clustering | 1538 (78%) | 664 (70%) | 874 (85%) |
Year 1 | 635 (79%) | 253 (62%) | 382 (97%) |
Year 2 | 903 (77%) | 411 (77%) | 492 (77%) |
Alerts warranting public health action | 714 (36%) | 165 (18%) | 549 (53%) |
Year 1 | 319 (40%) | 11 (3%) | 308 (79%) |
Year 2 | 395 (34%) | 154 (29%) | 241 (38%) |
Missing | 380 (19%) | 168 (18%) | 212 (21%) |