Page 41 - Predicting survival in patients with spinal bone metastasesL
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                                Univariate analysis of risk factors
Results for the univariate analysis are shown in table 6 and figures 2-4. All primary tumor classifications were significant predictors for survival after surgery. However, none of the classifications were able to systematically differentiate between all of their subgroups (see Appendix A). The absence of visceral metastases (p=0.014) had a significant effect on survival. Gender, location of the symptomatic spinal metastasis, number of spinal metastases, presence of other bone metastases, age, KPS and Frankel classification had no effect on survival after surgery.
Table 6. Results of univariate analysis. *Including spinal metastases
Primary tumor classification Tomita (modified) Tokuhashi (revised)
Van der Linden (modified) Bauer (modified)
Karnofsky performance status 100-80/70-50/40-10
Visceral metastases Present/removable/unremovable Present/not present
Bone metastases Solitary/multiple* 0/1-2/≥3
Number of spinal metastases 1/2/≥3
Frankel classification A+B/C+D/E
Age <65/≥65
Location C-Th6/Th7-L
Gender Male/female
III
<0.001 0.001 0.002 0.008
0.169
0.027 0.014
0.946 0.970
0.860 0.196 0.089 0.163 0.159
SURGICAL COHORT
  Univariate analysis
   p-value
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