Table 5. Risk Factors of the Detection Rate of PCa Analyzed by Cox Proportional Hazard Regression Model.
| Variable | Unadjusted model | Adjusted model | |||
|---|---|---|---|---|---|
| Events, no. | HR (95% CI) | p value | HR (95% CI) | p value | |
| Age (per 1 yr) | 509/1113 | 1.04 (1.03–1.05) | <0.001 | 1.01 (1.00–1.02) | 0.27 |
| Baseline PSA level (ng/ml) | |||||
| 0.01–4.00 (13%) | 12/132 | 1 (reference) | 1 (reference) | ||
| 4.01–10.00 (32%) | 102/345 | 3.59 (1.97–6.53) | <0.001 | 2.54 (1.40–4.63) | 0.002 |
| >10.00 (55%) | 388/587 | 10.81 (6.08–19.22) | <0.001 | 4.42 (2.46–7.94) | <0.001 |
| Score of PI-RADS | |||||
| 1–2 (49%) | 44/541 | 1 (reference) | 1 (reference) | ||
| 3 (10%) | 53/109 | 7.24 (4.85–10.80) | <0.001 | 6.43 (4.29–9.65) | <0.001 |
| 4–5 (41%) | 412/463 | 25.09 (18.23–34.54) | <0.001 | 18.58 (13.36–25.84) | <0.001 |
PCa: prostate cancer; HR: hazard ratio; CI: confidence interval; PSA: prostate specific antigen; PI-RADS: Prostate Imaging Reporting and Data System.