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Patients' demographic characteristics and the results in the two groups.
| CLIA + EPIA group | CLIA group | P value | |
|---|---|---|---|
| Number of cases | 20 | 24 | |
| Sex, male : female | 4 : 16 | 7 : 17 | 0.484† |
| Age (yrs) | 72.4 ± 9.5 (62~89) | 70.5 ± 8.2 (60~87) | 0.287 |
| Body mass index (BMI) (kg/m2) | 22.9 ± 2.7 (18.8~28.3) | 22.6 ± 2.8 (17.3~28.9) | 0.785 |
| Injured vertebral | |||
| T12 | 5 | 9 | |
| L1 | 5 | 7 | |
| L2 | 4 | 5 | |
| L3 | 6 | 1 | |
| L4 | 0 | 2 | |
| VAS | 2.5 ± 0.7 | 4.3 ± 1.0 | 0.001 |
| Additional sedative analgesia | 0 | 1 | |
| Nerve root adverse effects | 0 | 0 |
†Chi-square test.
