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Knowledge of the positive predictive value of PSA and Digital Rectal Exam (DRE); we asked 'For the following tests, what is the likelihood that a positive result indicates prostate cancer (positive predictive value)?'
| Test |
< 10% N (%) |
10–30% N (%) |
30–50% N (%) |
> 50% N (%) |
Not sure N (%) |
Missing N (%) |
| PSA level | 107 (7%) | 464 (29%) | 491 (30%) | 396 (24%) | 91 (6%) | 76 (5%) |
| DRE and PSA | 6 (0.4%) | 67 (4%) | 277 (17%) | 1,110 (68%) | 96 (6%) | 69 (4%) |
