Distribution of estimated concentration and probability of exposure to formaldehyde for jobs reported by all subjects
| Probability | Exposure (ppm) | Total | |||
|---|---|---|---|---|---|
| None or minimal | <0.10 | 0.10–0.50 | >0.50 | ||
| Definitely not or unlikely | 1918 | 1918 (86.8) | |||
| Possible | 170 | 15 | 9 | 194 (8.8) | |
| Probable | 53 | 23 | 0 | 76 (3.4) | |
| Definite | 17 | 4 | 0 | 21 (1.0) | |
| Total | 1918 (86.8) | 240 (10.9) | 42 (1.9) | 9 (0.4) | 2209 (100.0) |