Table 3.

Multivariate logistic regression analyses

	β ± SE	Exp (β)	95% CI		P-value
Surgical method (compared to decompression only)
Decompression with fixation	-7.920 ± 2.572	0.000	0.000-0.056		0.002
Corpectomy with fixation	-4.918 ± 2.072	0.007	0.000-0.425		0.018
Level of spinal metastasis (compared to 1 level)
2	-0.104 ± 1.321	0.901		0.068–11.996	0.937
3 or more	6.382 ± 1.952	591.084		12.875-27137.053	0.001
Number of non-spinal bone metastases (compared to no bone metastases except spine)
1	-0.634 ± 2.151	0.530		0.008–35.943	0.768
2	-3.498 ± 2.680	0.030		0.000-5.781	0.192
3 or more	5.509 ± 2.502	246.994		1.832-33300.574	0.028
Pathologic fracture	5.987 ± 1.990	398.303		8.061-19680.314	0.003
RCC	3.843 ± 1.557	46.689		2.206-987.992	0.014
Smoking	1.419 ± 0.745	4.133		0.960-17.798	0.057
Postoperative RTx					0.876
SINS					0.194

Data are expressed as the mean value and standard deviation

SE, standard error; RCC: renal cell carcinoma; RTx, Radiation therapy; SINS: spinal instability neoplastic score