Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Participation in the biorepository by study arm
| Randomization Arm | |||
|---|---|---|---|
| Blood Sample* | Screening-Colonoscopy | HSgFOBT** | Total |
| Blood Sample | 1376 (78.1%) | 105 (6.0%) | 1481 |
| No Blood Sample | 385 (21.9%) | 1660 (94.0%) | 1945 |
| Total | 1761 | 1762 | 3423 |
High sensitivity fecal occult blood test (HSgFOBT)
The biospecimens continue being monitored both on-site and remotely 24x7
Only participants who had a positive HSgFOBT test were eligible for blood draw at their follow-up colonoscopy
