Fried potato consumption is associated with elevated mortality: an 8-y longitudinal cohort study

Veronese, Nicola and Stubbs, Brendon and Noale, Marianna and Solmi, Marco and Vaona, Alberto and Demurta, Jacopo and Nicetto, Davide and Crepaldi, Gaetano and Schofield, Patricia and Koyanagi, Ai and Maggi, Stefania and Fontana, Luigi (2017) Fried potato consumption is associated with elevated mortality: an 8-y longitudinal cohort study. American Journal Of Clinical Nutrition. ISSN 1938-3207

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Official URL: http://ajcn.nutrition.org/content/early/2017/06/07...

Abstract

Background: Few studies have assessed the association between potato consumption and mortality. Objective: We investigated whether potato consumption (including fried and unfried potatoes) is associated with increased premature mortality risk in a North American cohort. Design: A longitudinal analysis included 4440 participants aged 45–79 y at baseline with an 8-y follow-up from the Osteoarthritis Initiative cohort study. Potato consumption (including fried and unfried potatoes) was analyzed by using a Block Brief 2000 food-frequency questionnaire and categorized as ≤1 time/mo, 2–3 times/mo, 1 time/wk, 2 times/wk, or ≥3 times/wk. Mortality was ascertained through validated cases of death. To investigate the association between potato consumption and mortality, Cox regression models were constructed to estimate HRs with 95% CIs, with adjustment for potential confounders. Results: Of the 4400 participants, 2551 (57.9%) were women with a mean ± SD age of 61.3 ± 9.2 y. During the 8-y follow-up, 236 participants died. After adjustment for 14 potential baseline confounders, and taking those with the lowest consumption of potatoes as the reference group, participants with the highest consumption of potatoes did not show an increased risk of overall mortality (HR: 1.11; 95% CI: 0.65, 1.91). However, subgroup analyses indicated that participants who consumed fried potatoes 2–3 times/wk (HR: 1.95; 95% CI: 1.11, 3.41) and ≥3 times/wk (HR: 2.26; 95% CI: 1.15, 4.47) were at an increased risk of mortality. The consumption of unfried potatoes was not associated with an increased mortality risk. Conclusions: The frequent consumption of fried potatoes appears to be associated with an increased mortality risk. Additional studies in larger sample sizes should be performed to confirm if overall potato consumption is associated with higher mortality risk.

Item Type: Journal Article
Keywords: Potato, Nutrition, Older people
Faculty: Faculty of Health, Social Care & Education (for research post September 2011)
Depositing User: Brendon Stubbs
Date Deposited: 19 Jun 2017 09:16
Last Modified: 07 Jun 2018 01:02
URI: http://arro.anglia.ac.uk/id/eprint/701843

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