Prevention of Work-related Asthma: Study Search

Prevention LevelSecondary
Study Year1991
Molecular Weight of AgentLMW
Agent CategoryMetals
Specific AgentAluminum
Occupation Aluminum potroom workers
Outcome/DiagnosisWork-related asthmatic symptoms (dyspnea, wheezing)
Activity Intervention Use of respiratory equipment (powered respirator helmet - 1 week, disposable mask - 1 week)
Participation Rate19 of 25 eligible subjects (Participation rate: 76%)
Intervention EffectivenessFifteen of 19 subjects had higher peak expiratory flow rate (p<0.01) during the helmet period than non-helmet period. The mean symptom score was higher in the non-helmet period, but the difference in symptom reporting between the two periods was not statistically significant (p=0.38).
Page last reviewed: February 20, 2020