Secondary |
Hudson |
1985 |
Canada |
HMW |
Animals, Crustacea, seafoods, fish |
Crab, various agents |
Snow crab-processing workers (Includes cohort reported by Cartier, 1984) |
Occupational asthma |
Removal from exposure (mean: 12.3, 24.5 months) |
Limitation: no report of participation rate |
Nineteen of 31 subjects were symptomatic of asthma at follow-up. Asymptomatic at follow-up was associated with shorter duration of exposure after onset of symptoms (p<0.01). No significant changes in spirometry were observed since diagnosis. |