Sex: |
Men | 11 | 6 |
Women | 0 | 2 |
Job category: |
Field operator | 6 | 5 |
Maintenance or technician | 3 | 2 |
TDI loading | 2 | 0 |
Supervisor | 0 | 1 |
Cigarette smoking status |
Non-smoker | 9 | 5 |
Current (<1 pack/day) | 1 | 0 |
Current (⩾1 pack/day) | 0 | 3 |
Unknown | 1 | 0 |
Basis for case ascertainment: |
History of symptoms | 10 | 3 |
History of symptoms+pulmonologist evaluation | 1 | 2 |
History of symptoms+shift in PFTs before to after | 0 | 3 |
Earlier exposure to TDI or phosgene: |
None | 8 | 2 |
TDI | 1 | 3 |
Phosgene | 0 | 2 |
Phosgene and TDI | 2 | 1 |
Duration of earlier TDI exposure (months): |
2–11 | 5 | 2 |
12–35 | 4 | 3 |
36–59 | 1 | 2 |
⩾60 | 1 | 1 |
Duration of exposure after onset of symptoms (y): |
<0.5 | 8 | 4 |
0.5–0.9 | 1 | 3 |
1.0–1.9 | 1 | 1 |
⩾2.0 | 1 | 0 |