Table 1 Patient characteristics.
Total | Subsidence | No-subsidence | P value | |
|---|---|---|---|---|
N = 165 | N = 45 | N = 120 | ||
Age(years) | 65.75 ± 8.39 | 70.4 ± 6.99 | 64.02 ± 8.24 | <0.001 |
Female | 90(75) | 31(14) | 59(61) | 0.023 |
BMI ≤ 25 (kg/m2) | 74(91) | 10(35) | 64(56) | 0.002 |
Diabetes | 13(152) | 3(42) | 10(110) | 0.723 |
Herniated intervertebral disc | 67 | 19 | 48 | |
Lumbar stenosis | 43 | 12 | 31 | |
Lumbar spondylolisthesis | 55 | 14 | 41 | |
Subsidence height | 1.46 ± 1.24 | 3.08 ± 1.03 | 0.85 ± 0.58 | <0.001 |
Surgical level | 0.104 | |||
L3-L4 | 13 | 1 | 12 | |
L4-L5 | 110 | 38 | 72 | |
L5-S1 | 42 | 6 | 36 |
