• Xiaoqian Chen, Jingjing Jiao, Pan Zhuang, Fei Wu, Lei Mao, Yiju Zhang, and Yu Zhang.
• Zhejiang Key Laboratory for Agro-Food Processing, Fuli Institute of Food Science, Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, Zhejiang, China.
• Nutrition. 2021 Jan 1; 81: 110902.

ObjectiveCurrent levels of potato consumption in relation to mortality in Chinese people remains unknown. The aim of this study was to investigate the intakes of total potatoes, fried potatoes, non-fried potatoes, and sweet potatoes as dietary carbohydrate sources in relation to all-cause mortality in the China Health and Nutrition Survey (CHNS).MethodsOverall 14 117 participants ≥20 y of age were included, with a median follow-up of 14 y. The cumulative average consumption of potatoes and other foods were calculated and validated using weighing methods in combination with 3-d, 24-h dietary recalls at both household and individual levels. Hazard ratios (HRs) and 95% confidence intervals (CIs) were estimated using Cox proportional hazards regression models after multivariate adjustment.ResultsWe documented 1007 deaths among the participants. The low and moderate intakes of total potatoes, fried potatoes, and non-fried potatoes were inversely associated with mortality. Compared with non-consumers, the intakes of total potatoes (HR, 0.48; 95% CI, 0.38-0.59), fried potatoes (HR, 0.44; 95% CI, 0.34-0.56), and non-fried potatoes (HR, 0.47; 95% CI, 0.37-0.61) at low consumption levels were most significantly related to lower mortality. Sweet potato consumption was inversely associated with mortality after full adjustment (HR, 0.82; 95% CI, 0.69-0.96) compared with non-consumers. Substituting grains and mixed beans for potatoes with equal amounts at high consumption levels strengthened the inverse associations.ConclusionIn the CHNS, current low and moderate, but not high levels of total potato and fried/non-fried potato consumption as well as sweet potato consumption were inversely associated with all-cause mortality among Chinese people.Copyright © 2020 Elsevier Inc. All rights reserved.

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