Number (and percentages) in different clinical outcomes with faecal haemoglobin concentrations ≥400, ≥500, ≥600, ≥700, ≥800, ≥900 and >1000 ng Hb/ml (5 ng/ml=1 µg Hb/g faeces)
| Clinical outcomes | ≥400 ng Hb/ml (%) | ≥500 ng Hb/ml (%) | ≥600 ng Hb/ml (%) | ≥700 ng Hb/ml (%) | ≥800 ng Hb/ml (%) | ≥900 ng Hb/ml (%) | ≥1000 ng Hb/ml (%) |
|---|---|---|---|---|---|---|---|
| Cancer | 39 | 38 (97.4) | 35 (89.7) | 31 (79.5) | 30 (76.9) | 30 (76.9) | 29 (74.4) |
| High-risk adenoma | 190 | 171 (90.0) | 151 (79.5) | 138 (72.6) | 127 (66.8) | 121 (63.7) | 111 (58.4) |
| Low-risk adenoma | 119 | 93 (78.2) | 73 (61.3) | 67 (56.3) | 53 (44.5) | 50 (42.0) | 44 (37.0) |
| Hyperplastic polyps | 40 | 34 (85.0) | 28 (70.0) | 23 (57.5) | 21 (52.5) | 20 (50.0) | 18 (45.0) |
| Haemorrhoids | 48 | 40 (83.3) | 38 (79.2) | 31 (64.6) | 28 (58.3) | 26 (54.2) | 25 (52.1) |
| Inflammatory bowel disease | 34 | 30 (88.2) | 25 (73.5) | 21 (61.8) | 18 (52.9) | 17 (50.0) | 17 (50.0) |
| Diverticular disease | 104 | 84 (80.8) | 75 (72.1) | 63 (60.6) | 52 (50.0) | 46 (44.2) | 42 (40.4) |
| No pathology | 170 | 144 (84.7) | 121 (71.2) | 106 (62.4) | 90 (52.9) | 79 (46.5) | 75 (44.1) |