Table 3.

Univariate and multivariate analyses of the prognostic role of serum PTH after 3 months of zoledronic acid therapy

Patients had to have complete baseline and 3-mo PTH assessments and assessment of baseline prognostic factors. Patients entered the risk set at the time of study entry.

Abbreviations: BAP, bone-specific alkaline phosphatase; CI, confidence interval; ECOG, Eastern Cooperative Oncology Group; NTX, N-telopeptide/creatinine ratio; PSA, prostate-specific antigen; PTH, parathyroid hormone; RR, relative risk.