Table 4. The concentrations of heavy metal elements in bone (ng/g)†.
| Element | Young (n=7) | Normal (n=9) | Osteopenia (n=7) |
|---|---|---|---|
| Cd | 27.65±19.03 | 80.7±41.48* | 112.02±92.09* |
| Cr | 5284.80±1996.68 | 1568.25±969.43* | 1572.49±938.37* |
| Co | 57.63±32.23 | 17.67±9.51* | 38.42±20.84# |
| Pb | 1697.18±664.03 | 1626.61±842.23 | 1818.34±928.27 |
| Mn | 1536.43±691.97 | 704.24±221.13 | 1685.0±1252.30 |
| Tl | 2810.35±330.75 | 1903.68±565.5* | 2251.45±977.37* |
†, data are described as the mean ± SD; *, both the normal group and the osteopenia group were compared with the young group, P<0.05; #, the osteopenia group was compared with the normal group, P<0.05. SD, standard deviation.