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Table 2 Prognostic factors for survival in all 61 patients

From: Pathologic fracture and metastatic spinal cord compression in patients with prostate cancer and bone metastases

Parameter

Unfavourable prognosis (comparison of actuarial survival curves, log rank test)

Multivariate analysis (Cox proportional hazards model)

Median age (years)*

age > 70 years, p = 0.04

Not significant

Median age at first cancer diagnosis (years)

Not significant

 

Median ECOG PS*

Increasing ECOG PS, p = 0.01

Significant, p = 0.03

Median interval (months)**

Not significant

 

Median PSA doubling time (months)**

PSA doubling time < 3 months, p = 0.03

Not significant

Median PSA (μg/L)*

Not significant

 

Hb (g/dL)*

Hb ≤ 12.0 g/dL, p = 0.03

Not significant

Median ALP (U/L)*

ALP > 118 U/L, p < 0.01

Significant, p = 0.02

Median LDH (U/L)*

LDH > 206 U/L, p < 0.01

Significant, p = 0.03

Hypo- or hypercalcemia*

Not significant

 

Bone pain*

Not significant

 

Gleason score

Not significant

 

Other distant metastases*

Not significant

 

≤10 bone metastases, >10, superscan

Not significant

 
  1. ECOG PS: Eastern Cooperative Oncology Group performance status, PSA: prostate-specific antigen, Hb: haemoglobin, ALP: alkaline phosphatase, LDH: lactate dehydrogenase
  2. * when diagnosed with bone metastases
  3. **only available in patients with metachronous diagnosis