Prevention of Work-related Asthma: Study Search

Prevention LevelSecondary
AuthorDressel H
Study Year2009
CountryGermany
Molecular Weight of AgentHMW
Agent CategoryAnimal-derived antigens
Specific AgentCow dander and storage mite
Occupation Farmers
Outcome/DiagnosisRespiratory outcomes in farmers with occupational asthma
Activity Intervention Educational intervention
Participation RateIn the intervention group, 91 of 120 (76%) subjects returned for follow-up after 1 year. 43 of 91 subjects were used in the analysis.
Intervention Effectiveness1. The geometric mean of exhaled nitric oxide fraction (FeNO) a. In the intervention group, significantly decreased from 31.5 to 25.0 ppb (p=.001). b. In the control group, increased slightly from 27.2 to 30.7 ppb. 2. Both groups had no statistically significant changes in respiratory symptoms or spirometric results (FEV1 and FEV1/FVC).
Page last reviewed: February 20, 2020