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Table 2 Comparison of risk factors between the re-fracture group and the non-refracture group

From: Analysis of risk factors related to the re-fracture of adjacent vertebral body after PKP

Risk factors Group Re-fractured group (case) Non-refractured group (case) X2 value P value
Age  ≤ 65 years 3 65 4.45 0.04
 > 65 years 21 139
Number of vertebral bodies  ≤ 1 7 172 38.71 0.00
 ≥ 2 17 32
Scoliosis Complicated scoliosis 18 28 50.06 0.00
Not complicated scoliosis 6 176
Osteoporotic Anti-osteoporotic 23 79 26.06 0.00
Not anti-osteoporotic 1 125
Sex Male 4 31 0.00 1.00
Female 20 173