Table 2.
Comparison of metal levels in serum and urine in the three groups analyzed
| Metal | Group | Median | Q1 | Q3 | Minimum | Maximum |
|---|---|---|---|---|---|---|
| Serum nickel (μg/l) | Group 1 (n = 22) | 0.99 | 0.99 | 0.99 | 0.99 | 1.40 |
| Group 2 (n = 11)a | 3.80 | 3.00 | 5.30 | 1.50 | 9.00 | |
| Group 3 (n = 22) | 1.00 | 0.99 | 1.42 | 0.99 | 2.00 | |
| P | <0.001 | |||||
| Urine nickel (μg/l) | Group 1 (n = 22) | 0.99 | 0.99 | 1.55 | 0.99 | 3.20 |
| Group 2 (n = 11)a | 20.40 | 14.50 | 96.50 | 1.70 | 300.00 | |
| Group 3 (n = 22) | 1.30 | 0.99 | 2.45 | 0.99 | 6.80 | |
| P | <0.001 | |||||
| Serum chromium (μg/l) | Group 1 (n = 22) | 0.40 | 0.20 | 0.50 | 0.19 | 0.90 |
| Group 2 (n = 11)a | 10.50 | 4.80 | 23.00 | 1.60 | 33.00 | |
| Group 3 (n = 22)b | 1.00 | 0.48 | 1.33 | 0.19 | 2.70 | |
| P | <0.001 | |||||
| Urine chromium (μg/g creatinine) | Group 1 (n = 22) | 0.20 | 0.09 | 0.50 | 0.09 | 1.60 |
| Group 2 (n = 11)a | 27.90 | 12.00 | 73.20 | 6.00 | 96.50 | |
| Group 3 (n = 22)b | 2.70 | 1.70 | 5.10 | 0.50 | 12.70 | |
| P | <0.001 | |||||
Q Quartiles
aStatistically significant elevation compared to the other two groups (Dunn–Sidak test)
bStatistically significant elevation compared to the control group (Group 1) (Dunn–Sidak test)