Table 2 Diagnostic investigations and diagnoses 3 months after performance of FIT
Positive FITs (≥10 μg Hb/g faeces) | Negative FITs (<9 μg Hb/g faeces) | |||
|---|---|---|---|---|
n | % (95%CI) | n | % (95%CI) | |
Requested FITs | 540 | 15.6 (14.4;16.8) | 2922 | 84.4 (83.2;85.6) |
Diagnostic investigation | ||||
Colonoscopy/CT colonography | 416 | 77.0 | 418 | 14.3 |
No diagnostic investigation | 124 | 23.0 | 2504 | 85.7 |
Diagnoses | ||||
Colorectal cancer or serious bowel disease | 124 | 23.0 (19.4;26.5) | NA | – |
Serious bowel disease | 73 | 13.5 (10.6;16.4) | 26 | 0.9 (0.5;1.2) |
Inflammatory bowel disease | 11 | 2.0 (0.8;3.2) | 20 | 0.7 (0.4;1.0) |
High risk adenoma | 62 | 11.5 (8.8;14.2) | 6 | 0.2 (0.1;0.4) |
Colorectal cancer | 51 | 9.4 (7.0;11.9) | <3 | <0.1 |
Location | ||||
Proximal colon | 21 | 41.2 (27.2;55.2) | NA | – |
Distal colon | 16 | 31.4 (18.2;44.6) | NA | – |
Rectum | 14 | 27.5 (14.8;40.1) | NA | – |
UICC stage | ||||
Stage I | 13 | 25.5 (13.1;37.9) | NA | – |
Stage II | 21 | 41.2 (27.2;55.2) | NA | – |
Stage III | 7 | 13.7 (4.0;23.5) | NA | – |
Stage IV | 10 | 19.6 (8.3;30.9) | NA | – |
