Outcomes 6-Months Postintervention (Intention-to-Treat Analysis), Male Patients
| Outcomes* | No./Total No. (%) | Absolute Difference, % (95% CI) | P Value† | |
|---|---|---|---|---|
| Reminder Letter (n = 739) | Reminder Phone Call (n = 798) | |||
| Patients overdue for CRC screening who received a CRC screen | 183/739 (24.8) | 230/798 (28.8) | 4.1 (−0.4 to 8.5) | .073 |
| Patients overdue for CRC screening who receive an FOBT | 156/739 (21.1) | 198/798 (24.8) | 3.7 (−0.5 to 7.9) | .085 |
| Patients overdue for CRC screening who receive a colonoscopy | 34/739 (4.6) | 41/798 (5.1) | 0.5 (−1.6 to 2.7) | .625 |
↵* Patients in the phone call arm who did not receive the intervention but were up to date with screening at the time of outcome ascertainment were only considered screened if they received the screening test within 6 months of the date that letters were sent.
↵† χ2 test.
CRC, colorectal cancer; CI, confidence interval; FOBT, fecal occult blood test.