BioMed Research International / 2015 / Article / Tab 1

Clinical Study

Zoledronic Acid May Reduce Intraoperative Bleeding in Spinal Tumors: A Prospective Cohort Study

Table 1

Baseline characteristics in 157 patients with metastasesa.

CharacteristicPreoperative zoledronic acid group (group A; )Control group (group B; )

Age (y)0.205
 Mean ± SD54.6 ± 10.152.5 ± 11.0
Primary tumor0.293
Preoperative Frankel score0.296
Number of spinal metastases0.508
Complete arterial embolism0.588
Tumor location0.605

SD: standard deviation.
aThe Student’s -test was used for continuous variables, and chi-square analysis was used for categorical variables.