Demographic data.
Variable | n (%) or Mean (SD) |
N | 49 (100%) |
Age, y | 61.4 (11.4) |
Woman | 30 (61.2%) |
Body mass index (kg/m2) | 31.3 (5.1) |
Caucasian | 38 (77.6%) |
Not Hispanic | 48 (98.0%) |
Operative level | |
L1–L2 | 0 (0%) |
L2–L3 | 3 (6.1%) |
L3–L4 | 10 (20.4%) |
L4–L5 | 27 (55.1%) |
L5–S1 | 9 (18.4%) |