Urbanisation but not biomass fuel smoke exposure is associated with asthma prevalence in four resource-limited settings

摘要

BackgroundUrbanisation is an important contributor to the prevalence of asthma worldwide, and the burden of this effect in low-income and middle-income countries undergoing rapid industrialisation appears to be growing. We sought to characterise adult asthma prevalence across four geographically diverse settings in Peru and identify both individual and environmental risk factors associated with adult asthma.