Is tree loss associated with cardiovascular-disease risk in the Women’s Health Initiative? A natural experiment

Data from the Women’s Health Initiative were used to quantify the relationship between the loss of trees to an invasive forest pest-the emerald ash borer-and cardiovascular disease. The authors estimated a semi-parametric Cox proportional hazards model of time to cardiovascular disease, adjusting for confounders. The incidence of cardiovascular disease was defined as acute myocardial infarction requiring overnight hospitalisation, silent MI determined from serial electrocardiograms, ischemic or haemorrhagic stroke, or death from coronary heart disease. The authors concluded that the findings suggest that women living in a county infested with emerald ash borer had an increased risk of cardiovascular disease (HR=1.25, 95% CI: 1.20-1.31).

Authors: Donovan GH, Michael YL, Gatziolis D, Prestemon JP, Whitsel EA. ;Full Source: Health Place. 2015 Aug 31;36:1-7. doi: 10.1016/j.healthplace.2015.08.007. [Epub ahead of print] ;