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We read with great interest the recent article by Wilkinson et al1 published in the Journal of NeuroInterventional Surgery in November 2020, in which the authors compared the incidence rate of subarachnoid hemorrhage (SAH) between patients with and without abdominal aortic aneurysm (AAA). Their results indicated that the rate of SAH is elevated in patients with AAA compared with controls, with an IRR of 3.6 (95% CI 2.6 to 5.0, p<0.0001) and a …
Contributors All the authors contributed equally to this letter.
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests None declared.
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