Table 1.
Detailed characteristics of included randomized trials comparing mailed outreach with usual care for colorectal cancer screening
| Study | Test Type | Telephone Reminder | Majority Underserved Population | # Allocated, Usual Care | # Allocated, Mailed Outreach | Mean Age, Usual Care (SD) | Mean Age, Mailed Outreach (SD) | # Female, Usual Care (%) | # Female Mailed Outreach (%) | Screening Completion Usual Care (%) | Screening Completion, Mailed Outreach (%) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Singal, 2016(18) | FIT | Yes | Yes | 1199 | 2400 | 56 (4) | 56 (4) | 744 (62%) | 1474(61%) | 355 (30%) | 1410 (59%) |
| Gupta, 2013(19) | FIT | Yes | Yes | 3898 | 1593 | 59 (3) | 59 (3) | 2517 (65%) | 993 (62%) | 471 (12%) | 648 (41%) |
| Jean-Jacques, 2012**(20) | gFOBT | Yes | Yes | 98 | 104 | 60 (8) | 60 (7) | 58 (59%) | 67 (64%) | 15 (15%) | 40 (38%) |
| Coronado, 2011(21) | gFOBT | No | Yes | 167 | 168 | Unknown | Unknown | 88 (53%) | 89 (53%) | 4 (2%) | 43 (26%) |
| Goldberg, 2004(22) | gFOBT | No | Yes | 60 | 59 | 64 | 64 | 46 (77%) | 42 (71%) | 3 (5%) | 24 (41%) |
| Goldman, 2015(23) | FIT | Yes | Yes | 210 | 210 | 57 (6) | 58 (6) | 138 (66%) | 139 (66%) | 47 (22%) | 84 (40%) |
| Green, 2013(24) | gFOBT | No | No | 1166 | 1169 | Unknown | Unknown | 653 (56%) | 629 (54%) | 301 (26%) | 659 (56%) |
**
primary outcome data was for screening at 4 month follow up, but since data for 12 month follow up were provided, study was included and 12 month outcome data were abstracted for analysis; FIT, fecal immunochemical test; gFOBT, guaiac fecal occult blood test