Table 1 The demographics of patients
|  | Total (n = 80) | PASS = 1 (n = 63) | PASS = 0 (n = 17) | p value |
|---|---|---|---|---|
Age (mean, std) | 58.76 ± 10.10 | 57.05 ± 9.38 | 65.12 ± 10.41 | 0.008 |
Sex | Male :48 (60.0%) Female: 32 (40.0%) | Male: 36 (57.1%) Female: 27 (42.9%) | Male: 12 (70.6%) Female: 5 (29.4%) | 0.315 |
BMI (mean, std) | 25.78 ± 3.53 | 26.17 ± 3.42 | 24.32 ± 3.65 | 0.072 |
DM | Yes: 16 (20.0%) No: 64 (80.0%) | Yes: 13 (20.6%) No: 50 (79.4%) | Yes: 3 (17.6%) No: 14 (82.4%) | 0.785 |
Smoking | Yes: 12 (15.0%) No: 68 (85.0%) | Yes :8 (12.7%) No: 55 (87.3%) | Yes: 4 (23.5%) No: 13 (76.5%) | 0.267 |
OA1 | 1:6 (7.5%) 2:19 (23.8%) 3:55 (68.8%) | 1:5 (7.9%) 2:15 (23.8%) 3:43 (68.3%) | 1:1 (5.9%) 2:4 (23.5%) 3:12 (70.6%) | 0.958 |
CCI (mean, std) | 1.80 ± 1.30 | 1.62 ± 1.18 | 2.47 ± 1.50 | 0.042 |
Preop. Ambulation2 | 1:19 (23.8%) 2:55 (68.8%) 3:6 (7.5%) | 1:16 (25.4%) 2:41 (65.1%) 3:6 (9.5%) | 1:3( 17.6%) 2:14 (82.4%) 3:0 (0.0%) | 0.281 |
Diagnosis | Stenosis: 3 (3.8%) Myelopathy: 77 (96.3%) | Stenosis: 1 (1.6%) Myelopathy: 62 (98.4%) | Stenosis: 2 (11.8%) Myelopathy: 15 (88.2%) | 0.050 |
HIS | Yes: 77 (96.3%) No: 3 (3.8%) | Yes: 60 (95.2%) No: 3 (4.8%) | Yes: 17 (100.0%) No: 0 (0.0%) | 0.359 |
SES | Yes: 24 (30.0%) No: 56 (70.0%) | Yes: 19 (30.2%) No: 44 (69.8%) | Yes: 5 (29.4%) No: 12 (70.6%) | 0.952 |
Postop. 1 month ambulation3 | Nulls: 3 (3.8%) 1:28 (35.0%) 2:46 (57.5%) 3:3 (3.8%) | Nulls: 3 (4.8%) 1:23 (36.5%) 2:34 (54.0%) 3:3 (4.8%) | Nulls: 0 (0.0%) 1:5 (29.4%) 2:12 (70.6%) 3:0 (0.0%) | 0.484 |
JOA score preop (mean, std) | 11.18 ± 3.28 | 11.90 ± 2.77 | 8.47 ± 3.66 | 0.002 |
1 month (mean, std) | 14.10 ± 2.21 | 14.60 ± 1.73 | 12.24 ± 2.80 | 0.003 |
3 months (mean, std) | 14.92 ± 1.76 | 15.37 ± 1.38 | 13.24 ± 2.02 | 0.001 |
6 months (mean, std) | 15.01 ± 1.75 | 15.56 ± 1.34 | 13.00 ± 1.66 | 0.000 |
12 months (mean, std) | 15.23 ± 1.75 | 15.83 ± 0.99 | 13.00 ± 2.15 | 0.000 |
24 months (mean, std) | 15.14 ± 2.42 | 16.08 ± 0.81 | 12.65 ± 1.50 | 0.000 |