Prevention of Work-related Asthma: Study Search

Prevention LevelSecondary
Study Year1989
CountryNew Zealand
Molecular Weight of AgentLMW
Agent CategoryMetals
Specific AgentAluminum
Occupation Aluminum potroom workers
Outcome/DiagnosisOccupational asthma
Activity Intervention Medical surveillance (1977), transfer to exposure free area (Follow-up (FU): 5 years)
Participation Rate57 subjects presenting or detected at the biennial medical examination (Participation rate: 100%)
Intervention EffectivenessThe majority of 57 subjects improved in symptoms after 1 to 2 years, with bronchial hyperreactivity returning to normal. Deterioration occurred in some subjects over the subsequent 3 years, not limited to smoking or atopy. Limitation: no comparison group.
Page last reviewed: February 20, 2020