Table 3. Cox proportional hazards model† for factors associated with T rise in cycle 1 and cycle 2.
Parameter* | Hazard Ratio (HR) | 95% CI on HR | P value |
---|---|---|---|
T > 211 in cycle 1 | |||
Age (> 67 vs. ≤ 67) | 2.01 | 1.24 - 3.25 | 0.0045 |
Baseline DHT (< 153 vs. ≥ 153) | 2.34 | 1.32 - 4.15 | 0.0037 |
T 50-211 in cycle 1 | |||
T nadir (≤ 20 vs. > 20) | 2.22 | 1.46 - 3.36 | 0.0002 |
T > 211 in cycle 2 | |||
Baseline T (low vs. normal) | 4.24 | 1.20 - 15.07 | 0.025 |
Baseline DHT (< 300 vs. ≥ 300) | 2.94 | 1.41 - 6.12 | 0.0038 |
Caucasian vs. African American | 4.36 | 1.61 - 11.76 | 0.0037 |
T nadir (≤ 20 vs. > 20) | 3.59 | 1.81 - 7.11 | 0.0002 |
T 50-211 in cycle 2 | |||
T nadir (≤ 20 vs. > 20) | 4.56 | 2.58 - 8.06 | < 0.0001 |
Groups with delayed T rise listed first;
The final model, resulting from backward elimination, is presented. Factors included in the initial models, but which did not meet criteria to remain in the final model were baseline T in cycle 1 (for both models in cycle 1), and prior RT (for both models in cycle 2).