Prevention of Work-related Asthma: Study Search Results

Study Details

Prevention Level	Secondary
Author	Chan-Yeung
Study Year	1982
Country	Canada
Molecular Weight of Agent	LMW
Category	Wood dust or bark
Agent	Western red cedar
Occupation	Western red cedar workers
Outcome/Diagnosis	Occupational asthma
Activity Intervention	Removal from exposure (mean: 3.5 years)
Participation Rate	Limitation: no report of participation rate
Intervention Effectiveness	Compared to subjects still symptomatic (n=37), subjects who left the industry asymptomatic at follow-up (n=38) were more likely to have shorter duration of exposure prior to symptom onset (p<0.05), and shorter duration of symptoms prior to diagnosis (p<0.05). Subjects who remained on the job (n=50) continued to have asthma attacks.