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 |