Page 87 - Predicting survival in patients with spinal bone metastasesL

predictive group with the lowest expected survival were assessed at four and six months. Survival rates of the predictive groups with the highest expected survival were assessed at one and two years. A p-value of <0.05 was considered statistically significant. All analyses were performed using SPSS 20.0, Armonk NY, IBM Corp.
RESULTS
Table 1 summarizes the characteristics of the 1379 patients studied. Fifty-two percent were male and at baseline the mean age was 64.6 ± 12.4 years. The SBM were most commonly located in the thoracic part of the spine (n=376, 27%) and most patients had three or more SBM (n=730, 53%). Extraspinal bone metastases were found in 913 patients (66%) and visceral or brain metastases were found in 611 patients (44%). The majority of patients had no (n=746, 54%), or only minor (n=464, 34%) neurological deficit. Treatment consisted of radiotherapy in 1141 patients (83%) and 109 patients (8%) underwent a combination of surgery and radiotherapy. Thirty-three patients (2%) underwent only surgery and 96 patients (7%) had conservative treatment. The most prevalent primary tumors were breast
Figure 1. Overall survival
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SCORING SYSTEMS
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