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

Nicola Veronese, Patricia Schofield, Nicola Veronese, Davide Nicetto, Jacopo Demurtas, Ai Koyanagi, Luigi Fontana, Stefania Maggi, Brendon Stubbs, Marianna Noale, Marco Solmi, Gaetano Crepaldi, Alberto Vaona

Risultato della ricerca: Articlepeer review

25 Citazioni (Scopus)

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 followup, 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. This trial was registered at clinicaltrials.gov as NCT00080171. Am J Clin Nutr 2017;106:162-7. © 2017 American Society for Nutrition.
Lingua originaleEnglish
pagine (da-a)162-167
Numero di pagine6
RivistaTHE AMERICAN JOURNAL OF CLINICAL NUTRITION
Volume106
Stato di pubblicazionePublished - 2017

All Science Journal Classification (ASJC) codes

  • Medicine (miscellaneous)
  • Nutrition and Dietetics

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