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; )

Sex0.871
 Men4846
 Women3330
Age (y)0.205
 Mean ± SD54.6 ± 10.152.5 ± 11.0
 Range33–7531–87
Primary tumor0.293
 Lung3019
 Liver1119
 Thyroid148
 Breast710
 Renal67
 Prostate68
 Other75
Preoperative Frankel score0.296
 A31
 B64
 C2620
 D3646
 E105
Number of spinal metastases0.508
 Single7467
 Multiple79
Complete arterial embolism0.588
 Yes6160
 No2016
Tumor location0.605
 Cervical1417
 Thoracic3534
 Lumbar3225

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