Table 1 Demographic characteristics
From: Endoscopic rhizotomy for chronic lumbar zygapophysial joint pain
Index | ERFA group | Control group | P value |
|---|---|---|---|
Cases (n) | 30 | 30 | |
Gender (male/female) | 16/14 | 17/13 | 0.795 |
Age (years) | 65.73 ± 7.62 | 64.78 ± 6.62 | 0.607 |
Duration of back pain (months) | 46.83 ± 11.43 | 46.71 ± 11.21 | 0.967 |
History of lumbar surgery (yes/no) | 10/20 | 9/21 | 0.781 |
BMI (kg/m2) | 21.52 ± 1.32 | 21.44 ± 1.33 | 0.816 |
L3-4, L4-5, L5-S1 | 6, 16, 8 | 5, 17, 8 | 0.941 |