Secondary |
Banks |
1990 |
USA |
LMW |
Diisocyanates |
Toluene diisocyanate (TDI) |
Polyurethane foam workers (Includes cohort reported by Hendrick, 1986) |
Occupational asthma |
Transfer to low exposure area (5 years) |
6 of 6 eligible subjects (Participation rate: 100%) |
All subjects (n=6) persisted with respiratory symptoms at follow-up, with no improvement in bronchial hyperresponsiveness. These subjects experienced significantly less exposures than workers on the foam line, and finishing workers (p<0.01). |