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Estimated (log) exposure (µg/m3 * hours) by sex in welders (N = 334).
| Aluminum | Chromium | Manganese | Nickel | Total dust | |
|---|---|---|---|---|---|
| Men | |||||
| Mean | 4.26 | 2.65 | 6.49 | 3.20 | 8.22 |
| SD | 1.39 | 1.41 | 1.26 | 1.26 | 1.20 |
| N | 199 | 199 | 199 | 199 | 199 |
| Women | |||||
| Mean | 4.23 | 2.25 | 6.26 | 2.87 | 8.64 |
| SD | 1.52 | 1.51 | 1.31 | 1.16 | 1.23 |
| N | 135 | 135 | 135 | 135 | 135 |
| Total | |||||
| Mean | 4.25 | 2.49 | 6.40 | 3.07 | 8.75 |
| SD | 1.44 | 1.46 | 1.28 | 1.23 | 1.21 |
| N | 334 | 334 | 334 | 334 | 334 |
| Difference between means | |||||
| P | 0.823 | 0.013 | 0.111 | 0.015 | 0.192 |
