Risk associated with occupational exposure among female cases of systemic sclerosis and matched controls; maximum likehood estimate of the odds ratio (OR) and confidence intervals (95% CI)
| Exposure† | Cases n=69 | Controls n=138 | OR (95% CI) |
|---|---|---|---|
| †Ever versus never exposed; *p<0.05. | |||
| Crystalline silica | 6 | 1 | 13.04 (1.54 to 110.66)* |
| Trichlorethylene | 6 | 6 | 2.10 (0.65 to 6.75) |
| Chlorinated solvents | 9 | 8 | 2.44 (0.90 to 6.63) |
| Toluene | 5 | 3 | 3.51 (0.81 to 15.17) |
| Aromatic solvents | 7 | 6 | 2.48 (0.80 to 7.70) |
| Ketones | 7 | 2 | 7.68 (1.55 to 38.02)* |
| White spirit | 8 | 3 | 5.90 (1.51 to 23.01)* |
| Any type of solvent | 14 | 14 | 2.25 (1.01 to 5.05)* |
| Epoxy resin | 3 | 0 | Non-calculable |
| Welding fumes | 2 | 1 | 4.09 (0.36 to 45.90) |