Prevention of Work-related Asthma: Study Search Results

Study Details
Prevention LevelSecondary
AuthorMenzies D
Study Year2006
Molecular Weight of AgentLMW
AgentSecond hand smoke
OccupationBar Workers
Outcome/DiagnosisRespiratory symptoms, pulmonary function, and markers of inflammation
Activity InterventionRemoval from exposure to second hand smoke (1 and 2 months)
Participation Rate77 of 105 (73%) non-asthmatic and asthmatic nonsmoking bar workers.
Intervention EffectivenessChanges from pre-legislation ban on smoking in public places to 1 and 2 month afterward as follows: For asthmatic bar workers: -Exhaled nitric oxide decreased from 34.3 parts per billion (ppb) to 27.4 ppb (0.8-fold change; 95% CI, 0.67 to 0.96 ppb; P = .04) 1 month after the ban. -Juniper quality-of-life scores were significant improved from 80.2 to 87.5 points (7.3 points; 95% CI, 0.1 to 14.6 points; P = .049) 2 months after the ban. Other statistically significant changes observed for all asthmatic and non-asthmatic bar workers combined in respiratory or sensory symptoms, FEV1, Serum cotinine levels, total white blood cell, and neutrophil count.
Page last reviewed: May 25, 2022