|  | Type of spinal stenosis |  |  |
Outcome | Foraminal stenosis | Lateral recess stenosis | Central stenosis | P |
ODI (%) | ||||
 1wk | 53.73 ± 21.65 | 58.46 ± 20.23 | 59.64 ± 15.28 | 0.730 |
 3mo | 59.09 ± 19.48 | 66.17 ± 21.20 | 65.45 ± 17.37 | 0.320 |
 1 yr | 65.03 ± 21.19 | 69.32 ± 21.12 | 69.76 ± 16.65 | 0.672 |
VAS for low back pain (%) | ||||
 1wk | 51.76 ± 12.38 | 55.95 ± 12.15 | 55.87 ± 9.77 | 0.723 |
 3mo | 54.35 ± 8.06 | 57.87 ± 13.67 | 59.46 ± 13.72 | 0.696 |
 1 yr | 57.95 ± 8.77 | 64.45 ± 14.93 | 62.83 ± 12.84 | 0.537 |
VAS for leg pain (%) | ||||
 1wk | 62.10 ± 19.66 | 62.73 ± 16.72 | 61.74 ± 17.53 | 0.980 |
 3mo | 71.57 ± 22.16 | 64.55 ± 16.86 | 61.14 ± 19.59 | 0.351 |
 1 yr | 75.68 ± 20.68 | 66.67 ± 19.14 | 62.43 ± 22.31 | 0.172 |
 |  | Stenosis grade |  |  |
Outcome | Mild | Moderate | Severe | P |
ODI (%) | ||||
 1wk | 61.69 ± 18.44 | 59.30 ± 18.70 | 50.71 ± 19.68 | 0.204 |
 3mo | 69.98 ± 18.10 | 67.75 ± 17.79 | 52.54 ± 20.34 | 0.132 |
 1 yr | 73.53 ± 17.33 | 73.16 ± 15.84 | 55.23 ± 22.55 | 0.069 |
VAS for low back pain (%) | ||||
 1wk | 59.22 ± 12.25 | 55.43 ± 8.37 | 49.36 ± 13.19 | 0.088 |
 3mo | 60.92 ± 14.61 | 60.03 ± 10.32 | 49.68 ± 10.49 | 0.037 |
 1 yr | 67.16 ± 16.51 | 65.06 ± 8.81 | 53.16 ± 10.57 | 0.010 |
VAS for leg pain (%) | ||||
 1wk | 64.14 ± 16.12 | 64.41 ± 18.22 | 56.83 ± 17.06 | 0.301 |
 3mo | 71.33 ± 17.15 | 68.00 ± 19.32 | 53.32 ± 15.69 | 0.044 |
 1 yr | 74.82 ± 15.90 | 71.42 ± 20.84 | 52.56 ± 18.36 | 0.018 |