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Table 1 Patient’s basic characteristics

From: Prediction of early vascular cement leakage following percutaneous vertebroplasty in spine metastases: the Peking University First Hospital Score (PUFHS)

Characteristics Patients (n = 272)
Age (years, mean ± SD) 67.92 ± 10.21
Gender
 Male 59.93% (163/272)
 Female 40.07% (109/272)
Primary cancer types
 Slow growth 28.31% (77/272)
 Moderate growth 15.44% (42/272)
 Rapid growth 56.25% (153/272)
Preoperative treatments
 Topical treatments 36.40% (99/272)
 Systematic treatments 32.72% (89/272)
 No treatment 30.88% (84/272)
Number of treated vertebrae levels
 1 37.87% (103/272)
 2 26.10% (71/272)
 3 16.18% (44/272)
  ≥ 4 19.85% (54/272)
Vertebrae collapse
 No collapse 61.76% (168/272)
 Less than 50% 24.63% (67/272)
 More than 50% 13.60% (37/272)
Cortical osteolytic destruction in posterior wall
 Yes 41.91% (114/272)
 No 58.09% (158/272)
Vertebral endplate fracture
 Yes 17.65% (48/272)
 No 82.35% (224/272)
The Bilsky scale
 0 77.21% (210/272)
 1 10.29% (28/272)
 2 10.66% (29/272)
 3 1.84% (5/272)
Appearance of spine metastases
 Mixed lesions 17.65% (48/272)
 Osteolytic lesions 82.35% (224/272)
Load-bearing lines of spine
 Normal 88.24% (240/272)
 Abnormal 11.76% (32/272)
Vascular cement leakage
 Yes 26.47% (72/272)
 No 73.53% (200/272)
The total number of included vertebrae 632
Sites of vertebra
 Cervical 1.27% (8/632)
 Thoracic 46.04% (291/632)
 Lumbar 46.04% (291/632)
 Sacral 6.65% (42/632)
  1. Abbreviations: SD standard deviation