Cumulative exposure (y.mg/m3) to talc in the lung cancer case-control study
| Non-exposed | ≤100 | 100–400 | 400–800 | >800 | |
|---|---|---|---|---|---|
| Controls | 23 | 18 | 15 | 21 | 10 |
| Cases | 9 | 6 | 7 | 5 | 3 |
| OR | 0.86 | 1.07 | 0.60 | 0.73 | |
| Cumulative exposure to talc ( 30 cases and 87 controls): | |||||
| OR/100 y.mg/m3 | 95% CI | ||||
| 0.98 | 0.88 to 1.10 | ||||