Cumulative exposure (y.mg/m3) to talc in the non-malignant respiratory diseases case-control study
| Non-exposed | <100 | 100–400 | 400–800 | ≥800 | |
|---|---|---|---|---|---|
| Controls | 23 | 19 | 32 | 19 | 22 |
| Cases | 6 | 1 | 8 | 9 | 16 |
| OR | 0.22 | 1.00 | 1.97 | 2.53 | |
| Cumulative exposure to talc (OR/100 y.mg/m3, 40 cases and 115 controls): | |||||
| OR | 95% CI | ||||
| All cases | 1.08 | 1.02 to 1.16 | |||
| Pneumoconiosis | 1.17 | 0.99 to 1.38 | |||
| COPD | 1.02 | 0.86 to 1.20 | |||