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Net benefit at a threshold probability pt of 20%.
| Strategy | Sample size | Negatives | True positives | False positives | Net benefit calculation | Net benefit |
|---|---|---|---|---|---|---|
| Model with free-to-total ratio | 753 | 384 | 149 | 220 | [149 + 220 × (0.2 ÷ 0.8)] ÷ 753 | 0.1248 |
| Biopsy all men | 753 | 0 | 192 | 561 | [192 + 561 × (0.2 ÷ 0.8)] ÷ 753 | 0.0687 |
