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. 2019 Nov 28;9(11):e032703. doi: 10.1136/bmjopen-2019-032703

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© Author(s) (or their employer(s)) 2019. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.

This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, appropriate credit is given, any changes made indicated, and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/.

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Model discrimination (C-statistic) in the hold-out test set (National Health and Nutrition Examination Survey, 1999–2010 linked to the 2011 National Death Index, n=12 600). All models included demographic variables age, sex and race (black race, Hispanic ethnicity); covariates of total cholesterol (mg/dL), high-density lipoprotein (HDL) cholesterol (mg/dL), systolic blood pressure (mm Hg), blood pressure treatment status (yes/no), diabetes status (yes/no) and current smoking status (yes/no). ACC, American College of Cardiology; AHEI, Alternative Healthy Eating Index; DASH, Dietary Approaches to Stop Hypertension diet score; GBM, gradient boosted machine; HEI, Healthy Eating Index; MDS, Mediterranean Diet Score; RF, random forest.