Prevention of Work-related Asthma: Study Search Results

Study Details
Prevention LevelSecondary
Study Year1990
Molecular Weight of AgentLMW
CategoryWood dust or bark
AgentWestern red cedar
OccupationWestern red cedar workers (Includes cohort reported by Chan-Yeung, 1987)
Outcome/DiagnosisOccupational asthma
Activity InterventionTransfer 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: May 25, 2022