Clinical chemistry (urine) (geometric mean (range, SD))
| Variable | Control group (n=79) | Exposed group (n=75) |
| Albumin (mg/g creatinine) | 4.1 (0.4–45.7, 1.9) | 5.56-150 (0.6–128.5, 2.7) |
| Transferrin (μg/g creatinine) | 226.9 (31.1–1943.8, 2.5) | 356.46-150(40.0–4517.5, 2.9) |
| β2-microglobulin (μg/g creatinine) | 58.9 (2.7–237.5, 2.2) | 62.3 (3.2–323.2, 2.3) |
| Retinol binding protein (μg/g creatinine) | 50.4 (8.8–194.0, 2.1) | 50.9 (10.8–1445.6, 2.2) |
| α1-microglobulin (mg/g creatinine) | 2.95 (0.46–68.00, 2.2) | 3.02 (0.46–15.76, 2.4) |
| N-acetyl-β-glucosaminidase-B (U/g creatinine) | 0.10 (0.02–0.99, 2.0) | 0.11 (0.02–0.58, 2.1) |
| N-acetyl-β-glucosaminidase-total (U/g creatinine) | 0.88 (0.43–3.98, 1.6) | 0.91 (0.21–4.97, 1.7) |
| Kallikrein (U/g creatinine)6-151 | 0.34 (0.01–3.09, 2.7) | 0.34 (0.03–2.58, 2.4) |