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Correlation between percentage changes in serum testosterone and PSA at different periods of follow-up measured against the baseline
| Parameters testosterone (ng/dl)/PSA (ng/ml) | Study period | Pearson correlation coefficient | Strength of association (r2) | P value |
|---|---|---|---|---|
| Baseline/2 months | 0.515 | 0.27 | < 0.001 | |
| Baseline/4 months | 0.001 | 0.00 | 0.998 | |
| Baseline/6 months | –0.075 | 0.01 | 0.638 |
PSA: prostate-specific antigen
