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RESEARCH PRODUCT
Fried potato consumption is associated with elevated mortality: an 8-y longitudinal cohort study
Gaetano CrepaldiMarianna NoaleAi KoyanagiStefania MaggiAlberto VaonaPatricia SchofieldNicola VeroneseBrendon StubbsMarco SolmiLuigi FontanaLuigi FontanaJacopo DemurtasDavide Nicettosubject
Male0301 basic medicineGerontologyMedicine (miscellaneous)0302 clinical medicineRisk FactorsCause of DeathMedicineCookingLongitudinal StudiesProspective Studies030212 general & internal medicineMortality; Osteoarthritis Initiative; Potato; Risk factor; Aged; Cooking; Diet Surveys; Female; Follow-Up Studies; Humans; Longitudinal Studies; Male; Middle Aged; Plant Tubers; Proportional Hazards Models; Prospective Studies; Risk Factors; Cause of Death; Diet; Feeding Behavior; Solanum tuberosum; Medicine (miscellaneous); Nutrition and DieteticsLongitudinal cohortProspective cohort studyCause of deathMortality; Osteoarthritis Initiative; Potato; Risk factor; Medicine (miscellaneous); Nutrition and DieteticsNutrition and Dieteticsmortality potato risk factor Osteoarthritis Initiative.Confoundingfood and beveragesMiddle AgedPlant Tubersrisk factorOsteoarthritis InitiativepotatoFemalePotatoCohort studyDiet SurveysOsteoarthritis Initiative.03 medical and health sciencesAnimal scienceJournal ArticleHumansMortalityRisk factorAgedProportional Hazards ModelsSolanum tuberosumConsumption (economics)030109 nutrition & dieteticsProportional hazards modelbusiness.industryfungiFeeding BehaviormortalityDietRisk factorbusinessFollow-Up Studiesdescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-06-07 | The American Journal of Clinical Nutrition |