Smoking adjusted odds ratio for lung cancer by cross categories of cumulative exposure to dust and cumulative exposure to arsenic
| Cumulative exposure to total dust (mg/m3-year) | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No | Low (<50) | Medium (50–119.9) | High (>120) | Total | |||||||||||
| Cumulative exposure to arsenic (μg/m3-year) | Cases | Controls | OR (95% CI) | Cases | Controls | OR (95% CI) | Cases | Controls | OR (95% CI) | Cases | Controls | OR (95% CI) | Cases | Controls | OR (95% CI) |
| No exposure | 18 | 165 | 1.0 (—) | 0 | 0 | 0 | 0 | 0 | 0 | 18 | 165 | 1.0 (—) | |||
| <100 | 0 | 0 | 15 | 65 | 2.1 (1.0 to 4.4) | 8 | 44 | 1.7 (0.7 to 4.1) | 10 | 41 | 2.2 (0.9 to 5.0) | 33 | 150 | 2.0 (1.1 to 3.7) | |
| 100–499.9 | 0 | 0 | 18 | 80 | 2.0 (1.0 to 4.1) | 14 | 66 | 1.9 (0.9 to 4.0) | 3 | 8 | 3.4 (0.9 to 12.6) | 35 | 154 | 2.0 (1.0 to 3.7) | |
| 500–999.9 | 0 | 0 | 0 | 0 | 9 | 53 | 1.5 (0.6 to 3.5) | 13 | 51 | 2.3 (1.0 to 4.9) | 22 | 104 | 1.9 (1.0 to 3.7) | ||
| ≥1000 | 0 | 0 | 0 | 0 | 0 | 0 | 22 | 54 | 3.5 (1.8 to 7.0) | 22 | 54 | 3.5 (1.8 to 7.0) | |||
| Total | 18 | 165 | 1.0 (—) | 33 | 145 | 2.1 (1.1 to 3.8) | 31 | 163 | 1.7 (0.5 to 3.1) | 48 | 154 | 2.8 (1.6 to 5.0) | |||