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Published 14 October 2008, doi:10.1136/bmj.a1894
Cite this as: BMJ 2008;337:a1894
Smoking remains the main culprit
| The first 150 words of the full text of this article appear below. |
Smoking is the dominant risk factor for abdominal aortic aneurysm in both men and women. In the linked cohort study from the womens health initiative, Lederle and colleagues assess the potential risk factors for clinically relevant abdominal aortic aneurysm in 161 808 postmenopausal women. They show that current smokers have a four times greater risk of abdominal aortic aneurysm events and all those who have smoked more than 100 cigarettes have a twofold increase in risk, even if they have given up smoking.1
Smoking increases the relative risk of abdominal aortic aneurysm four times in both men and women, and the risk for ischaemic heart disease or peripheral arterial disease is increased twofold.2 Previous studies have associated both early onset of smoking and total duration of smoking with heightened risk of abdominal aortic aneurysm, although in many studies these associations were based on aortic diameter rather than clinical events. The
Janet T Powell, professor1, Paul E Norman, professor of vascular surgery2
1 Vascular Surgery Research Group, Imperial College, Charing Cross Campus, London W6 8RP, 2 School of Surgery, University of Western Australia, Fremantle Hospital, PO Box 480, Fremantle, WA 6959, Australia
j.powell@imperial.ac.uk