Risk factors | CSFL | Not CSFL | Correlation coefficient | P | |
---|---|---|---|---|---|
Gender | Male | 64 | 1547 | 0.0193 | 0.277 |
Female | 51 | 1517 | |||
Age(years) | ≤ 40 | 11 | 584 | 0.0666 | 0.0009 |
40–64 | 35 | 1157 | |||
≥ 65 | 69 | 1323 | |||
BMI (kg/m2) | < 18.5 | 33 | 1103 | 0.0303 | 0.2316 |
18.5–22.9 | 39 | 995 | |||
≥ 23 | 43 | 966 | |||
Smoking history | Yes | 71 | 1987 | 0.0122 | 0.4931 |
No | 44 | 1077 | |||
Type of disease | LDH | 6 | 801 | 0.4081 | 0 |
LSS | 29 | 1114 | |||
LS | 37 | 1085 | |||
LDS | 31 | 62 | |||
LST | 12 | 2 | |||
Type 2 diabetes | Yes | 58 | 1385 | 0.0196 | 0.2685 |
No | 57 | 1679 | |||
Duration of disease (years) | < 3 | 29 | 1115 | 0.0788 | 0.0001 |
3–10 | 27 | 981 | |||
> 10 | 59 | 968 | |||
Preoperative epidural hormone injection | Yes | 68 | 1256 | 0.0687 | 0.0001 |
No | 47 | 1808 | |||
Surgical method | Total laminar decompression | 67 | 1593 | 0.0234 | 0.1863 |
Fenestration decompression | 48 | 1471 | |||
Number of surgical levels | 1 | 18 | 1028 | 0.0785 | 0.0001 |
2–3 | 42 | 1059 | |||
> 4 | 55 | 977 | |||
Revision surgery | No | 42 | 2473 | 0.203 | 0 |
Yes | 73 | 591 |