Comparison of urinary cadmium levels between referents and exposed workers and among the exposure subcategories
| Exposure group comparisons | Geometric mean±SD | Median | 25th–75th percentile | Range |
|---|---|---|---|---|
| Referent vs exposed workers | ||||
| Referent (n=54) | 0.41±0.11 | 0.43 | 0.29–0.54 | 0.18–0.78 |
| Total exposed (n=133) | 5.80±0.38 | 5.91 | 4.17–8.18 | 2.74–9.89 |
| Across exposure subcategories | ||||
| Melting/alloying (n=32) | 4.85±0.19 | 4.93 | 4.16–5.76 | 3.17–7.33 |
| Fabricating (n=61) | 8.31±0.10 | 8.32 | 7.83–8.99 | 6.22–9.89 |
| Buffing/polishing (n=40) | 3.87±0.15 | 3.91 | 3.52–4.37 | 2.74–5.90 |
All units are µg cadmium/dl urine.
p<0.01 for all pairwise differences.