Results of univariate analysis of possible risk factors.
| Possible Risk Factors | OR | 95% CI | P Value |
| Age | 0.782 | 0.37–1.67 | 0.523 |
| Sex | |||
| Female | 1.367 | 0.66–2.85 | 0.404 |
| BMI >25 | 3.975 | 1.09–14.56 | 0.037 |
| Location | |||
| Proximal thoracic (T1-T4) | Ref | ||
| Middle thoracic (T5-T8) | 0.283 | 0.03–2.58 | 0.263 |
| Distal thoracic (T9-T12/L1) | 0.124 | 0.01–1.03 | 0.053 |
| Multilevel | |||
| High ESR >80 | 1.636 | 0.72–3.71 | 0.238 |
| High CRP >20 | 2.19 | 1.10–5.95 | 0.029 |
| Onset | |||
| <30 | Ref | ||
| 30–90 | 0.498 | 0.18–1.38 | 0.179 |
| >90 | 0.681 | 0.22–2.10 | 0.221 |
| Type of involvement | |||
| Paradiscal | Ref | ||
| Central | 0.612 | 0.19–1.98 | 0.413 |
| Panvertebral | 4.642 | 0.98–21.89 | 0.049 |
| Anterior | - | - | |
| Posterior | - | - | |
| X-ray imaging | |||
| AVH loss >50% | 0.874 | 0.41–1.88 | 0.732 |
| Kyphosis >30๐ | 1.25 | 0.46–3.40 | 0.662 |
| MRI (n [%]) | |||
| Loss of anterior CSF | 2.524 | 0.40–15.74 | 0.321 |
| Loss of posterior CSF | 7.545 | 3.02–18.85 | <0.001 |
| Cord signal change | 16.800 | 6.47–43.65 | <0.001 |
| Canal encroachment >50% | 18.07 | 5.61–58.22 | <0.001 |
Abbreviations: AVH, anterior vertebral height; BMI, body mass index; CRP, C-reactive protein; CSF, cerebrospinal fluid; ESR, erythrocyte sedimentation rate; MRI, magnetic resonance imaging; Ref, reference.
Note: Bold values represent statistically significant comparisons (P < 0.05).