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Characteristics of the Study Population
| Unilateral Puncture Group | Bilateral Puncture Group | P value | |
|---|---|---|---|
| No. of patients | 79 | 68 | |
| Age | 61–87 (70.73±6.61) | 64–89 (73.27±6.94) | 0.314 |
| Gender | 0.587 | ||
| Male | 18 | 13 | |
| Female | 61 | 55 | |
| Fracture site | |||
| T10 | 6 (7.59%) | 8 (11.76%) | |
| T11 | 9 (11.39%) | 10 (14.71%) | |
| T12 | 15 (19.00%) | 10 (14.71%) | |
| L1 | 18 (22.78%) | 13 (19.12%) | |
| L2 | 12 (15.19%) | 16 (23.53%) | |
| L3 | 13 (16.46%) | 6 (8.82%) | |
| L4 | 6 (7.59%) | 5 (7.35%) |
