Table 3. Urinary concentrations of metals depending on the presence of water retention (FRI ≥ 4.0).
Data are the median and 25th-75th percentiles.
| Metal analysis | FRI < 4.0 (n = 15) | FRI ≥ 4.0 (n = 18) | Statistics* |
|---|---|---|---|
| Aluminum (μg/l) | 3.0 (2.2–4.2) | 7.5 (6.0–9.0) | P< 0.001 |
| Antimony (μg/l) | 0.02 (0.02–0.05) | 0.10 (0.07–0.13) | P< 0.001 |
| Barium (μg/l) | 0.80 (0.65–1.13) | 2.54 (1.66–5.4) | P< 0.001 |
| Boron (mg/l) | 1.42 (1.10–2.14) | 3.06 (2.08–4.15) | P< 0.002 |
| Bromine (mg/l) | 1.68 (1.26–2.88) | 4.36 (3.29–6.36) | P< 0.001 |
| Cadmium (μg/l) | 0.14 (0.09–0.20) | 0.51 (0.38–0.95) | P< 0.001 |
| Calcium (mg/l) | 41 (27–61) | 154 (92–182) | P< 0.001 |
| Cesium (μg/l) | 2.5 (1.8–3.9) | 10.7 (8.1–14.9) | P< 0.001 |
| Cobalt (μg/l) | 0.08 (0.05–0.18) | 0.40 (0.25–0.99) | P< 0.001 |
| Copper (μg/l) | 3.8 (3.0–4.4) | 16.3 (15.0–20.1) | P< 0.001 |
| Iodine (μg/l) | 304 (198–373) | 430 (344–593) | P< 0.02 |
| Lead (μg/l) | 0.33 (0.22–0.49) | 0.86 (0.78–1.09) | P< 0.001 |
| Lithium (μg/l) | 5.96 (3.42–6.66) | 23.5 (15.3–33.9) | P< 0.001 |
| Magnesium (mg/l) | 25.5 (20.3–29.9) | 110.0 (84.3–120.0) | P< 0.001 |
| Manganese (μg/l) | 0.25 (0.16–0.60) | 0.36 (0.14–1.00) | P< 0.005 |
| Mercury (μg/l) | 0.13 (0.10–0.29) | 0.44 (0.36–0.75) | P< 0.001 |
| Molybdenum (μg/l) | 9.0 (5.8–19.0) | 79.1 (50–130) | P< 0.010 |
| Nickel (μg/l) | 0.50 (0.50–0.93) | 2.24 (0.50–3.29) | P< 0.003 |
| Palladium (μg/l) | 0.02 (0.02–0.04) | 0.06 (0.05–0.08) | P< 0.001 |
| Phosphorous (g/l) | 0.17 (0.11–0.26) | 1.20 (0.81–1.50) | P< 0.001 |
| Potassium (g/l) | 0.85 (0.62–1.2) | 2.8 (1.8–3.6) | P< 0.001 |
| Rhenium (μg/l) | 0.01 (0.01–0.02) | 0.04 (0.03–0.06) | P< 0.001 |
| Rubidium (mg/l) | 0.62 (0.53–0.92) | 3.0 (2.0–3.1) | P< 0.001 |
| Selenium (μg/l) | 6 (5–10) | 39 (30–60) | P< 0.001 |
| Silicon (mg/l) | 2.4 (2.0–3.4) | 11.0 (7.8–15.8) | P< 0.001 |
| Sodium (g/l) | 0.88 (0.69–1.01) | 2.5 (2.0–3.5) | P< 0.001 |
| Strontium (μg/l) | 33 (23–43) | 146 (105–180) | P< 0.001 |
| Sulphur (mg/l) | 170 (152–239) | 920 (780–1,100) | P< 0.001 |
| Thallium (μg/l) | 0.09 (0.08–0.15) | 0.35 (0.30–0.45) | P< 0.001 |
| Titanium (μg/l) | 0.94 (0.63–1.56) | 3.93 (2.71–4.61) | P< 0.001 |
| Tungsten (μg/l) | 0.03 (0.02–0.04) | 0.11 (0.09–0.34) | P< 0.001 |
| Zinc (μg/l) | 105 (61–140) | 720 (391–933) | P< 0.001 |
| FRI (arbitrary unit) | 2.00 (1.53–2.19) | 5.25 (5.25–5.75) | P< 0.001** |
* Mann-Whitney´s U test was used for statistics.
** Grouping variable.