Prevention of Work-related Asthma: Study Search

Prevention LevelSecondary
AuthorCote
Study Year1990
CountryCanada
Molecular Weight of AgentLMW
Agent CategoryWood dust or bark
Specific AgentWestern red cedar
Occupation Western red cedar workers (Includes cohort reported by Chan-Yeung, 1987)
Outcome/DiagnosisOccupational asthma
Activity Intervention Transfer to low exposure area, use of respiratory equipment (mean:6.5 years)
Participation Rate48 of 68 eligible subjects (Participation rate: 71%)
Intervention EffectivenessFor 48 subjects, the transfer to a less dusty job and the use of airstream helmet did not prevent deterioration of asthma. However, the use of the twin-cartridge respirator was associated with favorable outcome (p<0.05).
Page last reviewed: February 20, 2020