Table 2.
Findings in colon | Any FOBT+ | FOBT+ >4 fields | Any K-ras+ In FOBT+ | FOBT>4 + K-ras+ |
---|---|---|---|---|
N | 130 | 41 | 32 | 10 |
Adenocarcinoma | 23 | 13 | 8 | 6 |
PPV | 17.7% (2.1–33.3) | 31.7% (12.7–50.7) | 25.0% (7.3–42.7) | 60.0% (40.0–80.0) |
Adenoma | 25 | 9 | 8 | 2 |
PPV | 19.2% (3.8–34.7) | 22.0% (5.7–38.2) | 25.0% (8.0–42.0) | 20.0% (4.3–35.7) |
All Neoplasms* | 62 | 25 | 17 | 8 |
PPV | 47.7% (35.3–60.1) | 61.0% (48.8–73.1) | 53.1% (40.7–65.5) | 80.0% (70.0–90.0) |
No-neoplastic GI disease** | 46 | 13 | 9 | 1 |
PPV | 35.4% (21.6–49.2) | 31.7% (18.3–45.2) | 28.1% (15.1–41.1) | 10.0% (1.3–18.7) |
Normal colonoscopy*** | 22 | 3 | 6 | 1 |
PPV | 16.9% | 7.3% | 18.8% | 10.0% |
Includes adenocarcinomas, adenomas and polyps NOS
Includes diverticulosis, hemorrhoids, IBD.
does not preclude upper GI findings