Table 2 Heavy metals and their proportion in relation to calcium at the periphery and nucleus of stones
From: Heavy metals in urinary stones in the Democratic Republic of Congo
Heavy metal | Frequency (%) | Average crown | Average center | p |
|---|---|---|---|---|
Iron | 36 (100.0) | 0.045 ± 0.13 | 0.106 ± 0.31 | 0.323 |
Strontium | 36 (100.0) | 0.045 ± 0.06 | 0.174 ± 0.56 | 0.988 |
Zinc | 34 (94.4) | 0.022 ± 0.05 | 0.023 ± 0.05 | 0.900 |
Copper | 31(86.1) | 0.010 ± 0.03 | 0.013 ± 0.03 | 0.839 |
Bromine | 22 (61.1) | 0.008 ± 0.01 | 0.008 ± 0.01 | 0.986 |
Rubidium | 10 (27.8) | 0.317 ± 0.93 | 0.213 ± 0.30 | 0.143 |
Lead | 8 (22.2) | 0.003 ± 0.00 | 0.008 ± 0.01 | 0.271 |
Nickel | 3(8.3) | 0.009 ± 0.01 | 0.061 ± 0.08 | 0.236 |