Prevention of Work-related Asthma: Study Search

Prevention LevelSecondary
AuthorAllard
Study Year1989
CountryCanada
Molecular Weight of AgentBoth
Agent CategoryVarious
Specific AgentN/A
Occupation Various occupations (Includes cohort reported by Hudson, 1985)
Outcome/DiagnosisOccupational asthma
Activity Intervention Removal from exposure (mean: 2.3 years, 5.8 years)
Participation Rate26 of 32 eligible subjects (Participation rate: 81%)
Intervention EffectivenessAll subjects (n=26) were symptomatic at both follow-ups. There were no changes in medication use, spirometry, or bronchial hyperresponsiveness. Increased bronchial hyperresponsiveness was associated with duration of exposure after onset of symptoms.
Page last reviewed: February 20, 2020