Table 2.
Concentrations of metal among three groups.
| Metals (μg/L) | Controls | Mild PE | Severe PE | P-value |
|---|---|---|---|---|
| Median (IQR) | Median (IQR) | Median (IQR) | ||
| Zn | 5794.85 (4747.16, 6940.79)a |
7502.32 (6822.97, 9390.16)a |
3956.40 (2808.63, 6051.72)b |
0.000 |
| Mn | 4176.40 (3812.12, 4696.05)a |
4980.18 (4565.15, 5163.88)b |
8118.92 (5347.99, 9418.99)c |
0.000 |
| Ni | 2893.60 (76.65, 3453.47)a |
3897.13 (3667.93, 4038.01)b |
6440.99 (4475.77, 7777.19)c |
0.000 |
| Cu | 1363.93 (1283.23, 1509.60)a |
1939.52 (1768.27, 2006.59)b |
2840.72 (2536.13, 3131.70)c |
0.000 |
| Pb | 122.38 (72.73, 152.61)a |
162.44 (153.10, 182.31)b |
344.45 (249.50, 452.75)c |
0.000 |
| As | 10.21 (4.93, 12.28)a |
12.53 (10.91, 14.52)b |
18.42 (12.70, 24.13)c |
0.000 |
| Cd | 5.97 (2.31, 8.57)a |
10.11 (8.85, 12.38)b |
2.29 (1.74, 4.13)a |
0.000 |
| Hg | 5.05 (2.30, 6.15)a |
6.58 (6.21, 6.95)b |
13.20 (9.35, 16.07)c |
0.000 |
The same letter indicates no statistical difference between different groups. On the contrary, different letters indicate that the comparisons between different groups were statistically significant (such as a, b, and c; IQR, interquartile range; P-value by Kruskal–Wallis H test.).