Table 2.

Risk factors for PCE using multiple logistic regression analysis

Variable	OR	ST	Z	P>∣Z∣	95% CI
Involved vertebrae
1	1.278	0.538	0.58	0.560	0.560–2.918
2	2.412	1.063	2.000	0.046	1.017–5.722
Fracture location
1	0.241	0.101	−3.38	0.001	0.105–0.550
2	0.094	0.102	−2.19	0.028	0.114–0.779
Operative timing	0.178	0.798	−3.85	0.000	0.074–0.429
Operation method	0.187	0.096	−3.29	0.001	0.069–0.509

PCE pulmonary cement embolism, OR indicates odds ratio, ST stand error, CI confidence interval