Table 4.
Risk of miscarriage for those ever/never exposed during pregnancy to dusts and hazardous agents, adjusted for age, education, smoking, alcohol, spousal smoking, woman’s year of birth
| First pregnancy only |
All pregnancies |
|||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Exposure | Other Outcome | Miscarriage | ORa | 95% CIa | Other Outcome | Miscarriage | ORa | 95% CIa | ||||
| n | % | N | % | n | % | n | % | |||||
| Total | ||||||||||||
| Cotton dust | ||||||||||||
| Unexposed | 596 | 93.6 | 41 | 6.4 | 1.00 | (ref) | 1220 | 93.3 | 88 | 6.7 | 1.00 | (ref) |
| Exposed | 695 | 94.2 | 43 | 5.8 | 0.98 | (0.62–1.56) | 1606 | 93.9 | 105 | 6.1 | 1.02 | (0.74–1.40) |
| Wool dust | ||||||||||||
| Unexposed | 1152 | 93.8 | 76 | 6.2 | 1.00 | (ref) | 2512 | 93.6 | 173 | 6.4 | 1.00 | (ref) |
| Exposed | 139 | 94.6 | 8 | 5.4 | 0.87 | (0.40–1.87) | 314 | 94.0 | 20 | 6.0 | 0.90 | (0.53–1.55) |
| Silk dust | ||||||||||||
| Unexposed | 1235 | 94.1 | 78 | 5.9 | 1.00 | (ref) | 2681 | 93.7 | 180 | 6.3 | 1.00 | (ref) |
| Exposed | 56 | 90.3 | 6 | 9.7 | 1.66 | (0.67–4.08) | 145 | 91.8 | 13 | 8.2 | 1.45 | (0.70–3.00) |
| Synthetic fiber dust | ||||||||||||
| Unexposed | 885 | 95.1 | 46 | 4.9 | 1.00 | (ref) | 1925 | 94.4 | 114 | 5.6 | 1.00 | (ref) |
| Exposed | 406 | 91.4 | 38 | 8.6 | 1.89 | (1.20–3.00) | 901 | 91.9 | 79 | 8.1 | 1.46 | (1.07–1.99) |
| Mixed fiber, not otherwise specified (mix of synthetic/natural) | ||||||||||||
| Unexposed | 1260 | 94.2 | 78 | 5.8 | 1.00 | (ref) | 2740 | 93.8 | 181 | 6.2 | 1.00 | (ref) |
| Exposed | 31 | 83.8 | 6 | 16.2 | 3.31 | (1.30–8.42) | 86 | 87.8 | 12 | 12.2 | 1.99 | (0.95–4.18) |
| Solvents | ||||||||||||
| Unexposed | 1127 | 93.6 | 77 | 6.4 | 1.00 | (ref) | 2516 | 93.4 | 177 | 6.6 | 1.00 | (ref) |
| Exposed | 164 | 95.9 | 7 | 4.1 | 0.54 | (0.24–1.21) | 310 | 95.1 | 16 | 4.9 | 0.63 | (0.37–1.08) |
| Acids and bases | ||||||||||||
| Unexposed | 1204 | 93.8 | 80 | 6.2 | 1.00 | (ref) | 2657 | 93.6 | 181 | 6.4 | 1.00 | (ref) |
| Exposed | 87 | 95.6 | 4 | 4.4 | 0.60 | (0.21–1.71) | 169 | 93.4 | 12 | 6.6 | 0.98 | (0.46–2.08) |
| Resins | ||||||||||||
| Unexposed | 1261 | 94.0 | 80 | 6.0 | 1.00 | (ref) | 2772 | 93.6 | 188 | 6.4 | 1.00 | (ref) |
| Exposed | 30 | 88.2 | 4 | 11.8 | 1.91 | (0.64–5.68) | 54 | 91.5 | 5 | 8.5 | 1.20 | (0.44–3.31) |
| Lubricants | ||||||||||||
| Unexposed | 595 | 93.0 | 45 | 7.0 | 1.00 | (ref) | 1182 | 92.6 | 94 | 7.4 | 1.00 | (ref) |
| Exposed | 696 | 94.7 | 39 | 5.3 | 0.78 | (0.49–1.24) | 1644 | 94.3 | 99 | 5.7 | 0.87 | (0.62–1.22) |
| Metals | ||||||||||||
| Unexposed | 1204 | 93.7 | 81 | 6.3 | 1.00 | (ref) | 2661 | 93.5 | 185 | 6.5 | 1.00 | (ref) |
| Exposed | 87 | 96.7 | 3 | 3.3 | 0.44 | (0.13–1.45) | 165 | 95.4 | 8 | 4.6 | 0.63 | (0.32–1.25) |
a
OR, Age adjusted odds ratio; CI, confidence interval.