The link between environmental exposures and asthma has been clearly described, but a new study from researchers at the Harvard School of Public Health (HSPH) finds a strong association between domestic violence and asthma.
The study, in the upcoming June issue of the International Journal of Epidemiology, (published advance online Feb. 28, 2007) raises questions about the role of stress in the development of this common respiratory condition.
"Classic environmental triggers for asthma have been carefully studied, but there is less information on the role of stress in asthma episodes," says lead researcher S.V. Subramanian, Assistant Professor in the Department of Society, Human Development and Health at HSPH. "The risk posed by domestic violence - and perhaps other psychosocial factors - could be as high as some well known environmental risk factors such as smoking."
The authors performed their research using a large nationally representative database of 92,000 households in India, where domestic violence is highly prevalent. Each respondent was surveyed in a face-to-face interview in one of 18 Indian languages. Respondents were asked if anyone in the household suffered from asthma, and were also asked about a personal history of experiencing or witnessing domestic violence. Researchers also accounted for many other factors that have been associated with asthma, including exposure to tobacco smoke and level of education and income.