Table 10.
Concentrations of elements (in mg/kg on dry mass basis) and differences between them in the cancellous and cortical bone of the femur according to contact with chemicals (N = 96).
| Contact | Femoral head | Femoral neck | ||||
|---|---|---|---|---|---|---|
| AM ± SD | AM ± SD | |||||
| Med. | Med. | |||||
| QL–QU | QL–QU | |||||
| Yes n = 29 | No n = 67 | M-W | Yes n = 29 | No n = 67 | M-W | |
| Ca | 129760 ± 30767 | 139711 ± 38092 | NS | 155742 ± 38132 | 157848 ± 41674 | NS |
| 121696 | 133780 | 153604 | 150986 | |||
| 106560–143042 | 106146–173244 | 131382–181456 | 125924–184734 | |||
|
| ||||||
| Mg | 1385.5 ± 294.8 | 1473.3 ± 382.7 | NS | 1559.1 ± 338.4 | 1597.4 ± 314 | NS |
| 1334.5 | 1384.04 | 1522 | 1612.97 | |||
| 1183.17–1610.5 | 1159.13–1784.71 | 1387.55–1732.5 | 1372.67–1793.73 | |||
|
| ||||||
| P | 60891.1 ± 15375.9 | 63515.9 ± 17395.5 | NS | 68897.5 ± 17470.4 | 71411.8 ± 18695.6 | NS |
| 59071.29 | 59118 | 70672.38 | 68560 | |||
| 48262–69132.67 | 47872.9–78380.2 | 55192.08–81000 | 57827.45–84699.01 | |||
|
| ||||||
| Na | 5427.4 ± 1079.4 | 5483.5 ± 1036.1 | NS | 4559.5 ± 998.3 | 4733.9 ± 833.2 | NS |
| 5334.02 | 5456.31 | 4458 | 4812.28 | |||
| 4975.84–6217.92 | 4648.33–6093.08 | 3935.54–5181.37 | 4072.3–5358.02 | |||
|
| ||||||
| K | 687.4 ± 251.4 | 909.4 ± 796.7 | NS | 1094.3 ± 1822.1 | 919.2 ± 663.7 | NS |
| 611.65 | 712.87 | 570 | 770 | |||
| 500–810 | 564.36–1039.6 | 450–950 | 534.65–1138.61 | |||
|
| ||||||
| Zn | 72.8 ± 13.5 | 71.8 ± 17.1 | NS | 69.4 ± 14.6 | 68.4 ± 12.9 | NS |
| 71.01 | 69.75 | 69.42 | 65.4 | |||
| 62.61–81.98 | 57.65–87.98 | 57.56–76.51 | 58.76–75.45 | |||
|
| ||||||
| Cu | 1 ± 1 | 0.9 ± 0.8 | NS | 1 ± 1.5 | 0.8 ± 1 | NS |
| 0.9 | 0.76 | 0.58 | 0.77 | |||
| 0.04–1.66 | 0.04–1.37 | 0.04–1.22 | 0.04–1.12 | |||
|
| ||||||
| Cr | 1.6 ± 3.1 | 1.2 ± 1.8 | NS | 1.6 ± 1.8 | 1.4 ± 1.7 | NS |
| 0.5 | 0.48 | 0.95 | 0.7 | |||
| 0.12–1.68 | 0.12–1.67 | 0.51–1.91 | 0.12–1.7 | |||
|
| ||||||
| Ni | 1.1 ± 1.9 | 0.4 ± 0.8 | p < 0.05 | 1.2 ± 3 | 0.6 ± 1.9 | NS |
| 0.21 | 0.03 | 0.03 | 0.03 | |||
| 0.03–1.08 | 0.03–0.5 | 0.03–0.54 | 0.03–0.49 | |||
|
| ||||||
| Fe | 119.2 ± 104.9 | 126.7 ± 107.4 | NS | 132.7 ± 119.1 | 131 ± 148 | NS |
| 96.44 | 90.8 | 91.7 | 90.24 | |||
| 47.26–144.48 | 55.58–142.18 | 71.23–141.99 | 50.35–155.29 | |||
|
| ||||||
| Sr | 39.3 ± 26.7 | 46 ± 26.3 | NS | 44.4 ± 23.5 | 48.5 ± 22.4 | NS |
| 34.17 | 37.97 | 42.55 | 44.54 | |||
| 25.81–41.54 | 26.96–54.91 | 29.8–47.52 | 33.27–56.27 | |||
|
| ||||||
| Mo | 0.5 ± 0.6 | 0.6 ± 0.6 | NS | 0.8 ± 0.7 | 0.7 ± 0.7 | NS |
| 0.18 | 0.18 | 0.86 | 0.18 | |||
| 0.18–0.18 | 0.18–1.15 | 0.18–1.44 | 0.18–1.33 | |||
|
| ||||||
| Ba | 2.3 ± 1.3 | 2.5 ± 1.8 | NS | 2.5 ± 1.3 | 2.4 ± 1.3 | NS |
| 1.9 | 2.1 | 2.25 | 2.24 | |||
| 1.57–2.94 | 1.45–3.09 | 1.46–3.49 | 1.38–3.11 | |||
|
| ||||||
| Pb | 1.4 ± 1.8 | 1 ± 1.4 | NS | 1 ± 1.3 | 1.1 ± 1.4 | NS |
| 0.32 | 0.32 | 0.32 | 0.32 | |||
| 0.32–2.18 | 0.32–1.53 | 0.32–1.28 | 0.32–1.81 | |||
AM: arithmetic mean; SD: standard deviation; Med.: median; QL: lower quartile; QU: upper quartile; M-W, Mann-Whitney U-test; p: level of significance; NS: nonsignificant difference.