Table 2.
Relationships between the recovery rate and various factors.
| Factor | N | RR (%) | P value | |
|---|---|---|---|---|
| Sex | Male | 17 | 45.4 ± 30.3 | 0.102 |
| Female | 13 | 64.7 ± 31.6 | ||
| Location of lesion | Upper | 2 | 70.0 ± 42.4 | 0.191 |
| Middle | 4 | 77.2 ± 29.7 | ||
| Lower | 24 | 48.5 ± 30.6 | ||
| CT classification | Lateral | 3 | 46.0 ± 27.6 | 0.305 |
| Extended | 3 | 80.6 ± 17.3 | ||
| Enlarged | 24 | 51.4 ± 32.8 | ||
| MRI classification | Round | 20 | 50.6 ± 31.8 | 0.447 |
| Beak | 10 | 60.1 ± 32.7 | ||
| DM | No | 27 | 56.7 ± 32.2 | 0.005 |
| Yes | 3 | 27.5 ± 9.0 | ||
| Hypertension | No | 17 | 55.3 ± 36.5 | 0.766 |
| Yes | 13 | 51.7 ± 25.8 | ||
| History of smoking | No | 23 | 55.7 ± 34.3 | 0.562 |
| Yes | 7 | 47.5 ± 22.7 | ||
| T2HIS | No | 14 | 74.7 ± 24.7 | 0.000 |
| Yes | 16 | 35.4 ± 25.7 | ||
| Intraoperative DA/DO | No | 19 | 67.3 ± 29.0 | 0.001 |
| Yes | 11 | 30.4 ± 22.0 | ||
| Age at surgery | R = −0.301 | 0.106 | ||
| Duration of symptoms | R = −0.729 | 0.000 | ||
| Preoperative mJOA score | R = 0.455 | 0.011 | ||
| Operation time | R = 0.219 | 0.245 | ||
| EBL | R = 0.145 | 0.443 | ||
| Ratio of APD | R = 0.661 | 0.000 | ||
| Ratio of CSA | R = 0.553 | 0.002 |
aCT denotes computed tomography; bMRI denotes magnetic resonance imaging; cDM denotes diabetes mellitus; dT2HIS denotes high intramedullary signal on T2-weighted MRI; eDA denotes dural adhesion; fDO denotes dural ossification; gmJOA denotes modified Japanese Orthopaedic Association; hEBL denotes estimated blood loss; iAPD denotes anteroposterior diameter; jCSA denotes cross-section area.