Ninety per cent cancer rule-in
| Pathway | Proportion of non-cancers ruled-out (ie, not red-flagged) (specificity) (95% CI) | Positive predictive value (95% CI) |
| Breast | 0.4582 (0.4450 to 0.4715) | 0.0890 (0.0793 to 0.0991) |
| Lower Gastrointestinal | 0.2723 (0.2637 to 0.2811) | 0.0642 (0.0587 to 0.0697) |
| Upper Gastrointestinal | 0.3363 (0.3227 to 0.3503) | 0.0732 (0.0644 to 0.0822) |
| Gynaecological | 0.4674 (0.4473 to 0.4879) | 0.1134 (0.0972 to 0.1303) |
| Urological | 0.3548 (0.3379 to 0.3710) | 0.3044 (0.2878 to 0.3208) |
| Lung | 0.3625 (0.3238 to 0.3987) | 0.2541 (0.2178 to 0.2906) |
| Haematological | 0.4330 (0.3807 to 0.4849) | 0.4249 (0.3722 to 0.4759) |
| Head and neck | 0.2733 (0.2579 to 0.2885) | 0.0804 (0.0703 to 0.0911) |
| Skin | 0.3905 (0.3745 to 0.4068) | 0.3230 (0.3067 to 0.3392) |