Positive G-FOBT | Hb level (I-FOBT) (ng/ml) 20–50 | |
---|---|---|
Hb, haemoglobin; G-FOBT, guaiac faecal occult blood test; I-FOBT, immunochemical faecal occult blood test. | ||
No neoplasia | 108 | 167 |
Adenoma,10 mm | 30 | 67 |
Advanced neoplasia | 53 | 50 |
Adenoma >10 mm or high grade dysplasia,10 mm | 39 | 48 |
Invasive cancer | 14 | 2 |