Element | Control subjects (n = 18) | OA patients (n = 43) | P value |
Serum Zinc (μg/ml) | 2.1 ± 0.54 | 0.73 ± 0.17 | <0.0001 |
Serum Copper (μg/ml) | 1.33 ± 0.35 | 3.05 ± 0.81 | <0.0001 |
Serum Selenium (μg/ml) | 0.16 ± 0.03 | 0.054 ± 0.002 | <0.0001 |
Serum Manganese (μg/ml) | 0.64 ± 0.06 | 0.47 ± 0.11 | <0.001 |
Serum Magnesium (μg/ml) | 18.9 ± 2.3 | 18.01 ± 1.7 | 0.16 |
Copper/Zinc ratio | 0.69 ± 0.29 | 4.8 ± 3.1 | <0.0001 |