Table 4 Reduction in biopsies/cancers detected using as a threshold for biopsy a 20% or higher probability of cancer.
No. biopsies | No. cancers: | No. high grade cancers: | ||||
|---|---|---|---|---|---|---|
Performed | Avoided | Found | Missed | Found | Missed | |
Biopsy all men at risk | 1000 | 0 (0%) | 317 | 0 (0%) | 175 | 0 (0%) |
Biopsy if >= 20% risk from full model | 508 | 492 (49%) | 256 | 61 (19%) | 163 | 12 (4%) |