Conclusion High levels of aircraft noise were associated with increased risks of stroke, coronary heart disease, and cardiovascular disease for both hospital admissions and mortality in areas near Heathrow airport in London. As well as the possibility of causal associations, alternative explanations such as residual confounding and potential for ecological bias should be considerate https://www.bmj.com/content/347/bmj.f5432 Boe! Schiphol - KLM Schiphol Boe!