Table 4.
Multivariate analysis for predicting testosterone surge (LC-MS/MS)
| Univariate analysis | Multivariate analysis (linear analysis) | ||||
|---|---|---|---|---|---|
| Variables | P value | Partial regression coefficient | 95% CI lower | 95% CI upper | P value |
| Age | 0.140 | ||||
| Period of degarelix administration | 0.004 | −0.091 | −0.150 | −0.032 | 0.004 |
| GS | 0.354 | ||||
| Stage | 0.241 | ||||
| D’Amico classification | 0.149 | ||||
| Serum T (before ADT) | 0.688 | ||||
| Serum T (after switching therapy) | 0.948 | ||||
| Serum LH (before ADT) | 0.820 | ||||
| Serum LH (after switching therapy) | <0.001 | 0.445 | 0.339 | 0.551 | <0.001 |
| Serum FSH (before therapy) | 0.747 | ||||
| Serum FSH (after switching therapy) | 0.406 | ||||
GS Gleason score; ADT androgen deprivation therapy; T testosterone; LH luteinizing hormone; FSH follicle-stimulating hormone; CI confidence interval