Table 5.
Spearman rank correlation between Si, the other analyzed metals, and clinical factors (gender, implants, type of spine, patient’s age, and Pfirrmann et al. (2001) score)
| Sex | Implants | Intervertebral disc from | |||||
|---|---|---|---|---|---|---|---|
| Si | Men | Women | No | Yes | Lumbar | Cervical | |
| Al | 0.47* | 0.35 | 0.48 | 0.53* | 0.77* | 0.59* | 0.48 |
| Cu | −0.40* | 0.02 | −0.29 | −0.35 | −0.70* | −0.24 | −0.83* |
| Mg | 0.56* | 0.21 | 0.68* | 0.65* | 0.60 | 0.52* | 0.76* |
| Zn | 0.20 | −0.05 | 0.25 | 0.15 | 0.67* | 0.16 | 0.62* |
| age | −0.03 | 0.26 | −0.27 | −0.22 | 0.79* | 0.00 | 0.12 |
| Pfirrmann | −0.06 | −0.13 | −0.04 | −0.09 | 0.00 | 0.12 | −0.42 |
*Statistically significant