This study sought to determine the effects of exposure to environmental tobacco smoke (ETS) and childhood cigarette smoking on asthma symptoms in middle-school children in North Carolina.
n 1999–2000, information was collected in a survey completed by the children. Outcomes of asthma symptom reporting were regressed on tobacco smoke exposures.
Children who currently smoke or report any exposure to ETS were at increased risk of reporting active asthma symptoms, in a dosedependant fashion. Exposure to ETS and childhood cigarette smoking were responsible for 18% of the cases of asthma in the study population and $1.62 million dollars in excess medical expenditures.
Childhood cigarette smoking and exposure to ETS are independently associated with asthmatic symptoms, even at low levels of exposure.
(1) University of North Carolina at Chapel Hill
(2) Duke University, School of Medicine