Research Article
Impact and Outcomes of Pretreatment Total Serum Testosterone on Localized Prostate Cancer Patients
Table 3
Predicted change over time relative to baseline testosterone level by treatment modality. The change was determined by linear regression modelling.
| Therapy | Predicted change in testosterone level/year from baseline | 95% confidence interval | value | R-squared | Statistical interpretation |
| Brachytherapy | 0.17 | −12.9 to 13.2 | 0.979 | <0.001 | No significant change | EBRT | 4.8 | −10.3 to 19.8 | 0.529 | 0.005 | No significant change | EBRT + LDR | −13.2 | −0.6 to 24.1 | 0.482 | 0.008 | No significant change | Surgery | −20.5 | −88.7 to 47.6 | 0.54 | 0.016 | No significant change | All treatments combined | −0.0 | −0.03 to 0.02 | 0.780 | <0.001 | No significant change |
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