Table 3.

Multivariate analysis for progression-free survival and cause-specific survival

VariablesVariable estimate (SE)Conditional risk ratio (95% confidence interval)P
Progression-free survival
    Age (y)0.336 (0.438)1.399 (0.593-3.299)Not significant
    PSA at baseline1.626 (0.498)5.086 (1.916-13.501)<0.01
    Bax immunoreactivity1.107 (0.450)3.026 (1.251-7.317)Not significant
Cause-specific survival
    Age (y)0.576 (0.553)1.780 (0.602-5.258)Not significant
    Prior estramustine phosphate therapy1.282 (0.625)3.602 (1.058-12.268)<0.05
    Bcl-2 immunoreactivity2.218 (0.709)9.188 (2.288-36.894)<0.01