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. 2017 Mar 13;6(3):e004764. doi: 10.1161/JAHA.116.004764

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© 2017 The Authors. Published on behalf of the American Heart Association, Inc., by Wiley Blackwell.

This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial‐NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.

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Forest plot of multilevel multivariable regression results. Association of age and sex with the in‐hospital risk of (A) any stroke or death, (B) any stroke alone, and (C) all‐cause death alone. Adj. RR=risk ratio adjusted for ASA category, neurological status on admission, ipsi‐ and contralateral degree of carotid stenosis, antiplatelet medication, pre‐ and postoperative assessment by a neurologist, intraoperative neurophysiological monitoring, technique of CEA, anesthesia, shunting, intraoperative check of technical success, clamping time, and annual hospital CEA volume (see Methods for further details on the regression model); bars indicate 95% CI. ASA indicates American Society of Anesthesiologists; CEA, carotid endarterectomy.