Ultra-processed food consumption and mortality among patients with stages I–III colorectal cancer: a prospective cohort study

Dong Hang, Mengxi Du, Lu Wang, Kai Wang, Zhe Fang, Neha Khandpur, Sinara Laurini Rossato, Eurídice Martínez Steele, Andrew T. Chan, Frank B. Hu, Jeffrey A. Meyerhardt, Dariush Mozaffarian, Shuji Ogino, Qi Sun, John B. Wong, Fang Fang Zhang, Mingyang Song

Research output: Contribution to journalArticlepeer-review

Abstract

Background: Ultra-processed foods (UPFs) are emerging as a risk factor for colorectal cancer (CRC), yet how post-diagnostic UPF intake may impact CRC prognosis remains unexplored. Methods: Data collected from food frequency questionnaires were used to estimate intakes of total UPFs and UPF subgroups (serving/d) at least 6 months but less than 4 years post-diagnosis among 2498 patients diagnosed with stages I–III CRC within the Nurses’ Health Study and Health Professionals Follow-up Study during 1980–2016. Hazard ratios (HR) and 95% confidence intervals (CIs) of all-cause, CRC- and cardiovascular disease (CVD)-specific mortality in association with UPF consumption were estimated using an inverse probability weighted multivariable Cox proportional hazards regression model, adjusted for confounders. Findings: The mean (SD) age of patients at diagnosis was 68.5 (9.4) years. A total of 1661 deaths were documented, including 321 from CRC and 335 from CVD. Compared to those in the lowest quintile (median = 3.6 servings/d), patients in the highest quintile (median = 10 servings/d) of post-diagnostic UPF intake had higher CVD mortality (HR = 1.65, 95% CI = 1.13–2.40) but not CRC or all-cause mortality. Among UPF subgroups, higher consumption of fats/condiments/sauces was associated with a higher risk of CVD-specific mortality (highest vs. lowest quintile of intake, HR = 1.96, 95% CI = 1.41–2.73), and higher intake of ice cream/sherbet was associated with an increased risk of CRC-specific mortality (highest vs. lowest quintile, HR = 1.86, 95% CI: 1.33–2.61). No statistically significant association was found between UPF subgroups and overall mortality. Interpretation: Higher post-diagnostic intake of total UPFs and fats/condiments/sauces in CRC survivors is associated with higher CVD mortality, and higher ice cream/sherbet intake is linked to higher CRC mortality. Funding: US National Institutes of Health and the American Cancer Society.

Original languageEnglish
Article number102572
JournaleClinicalMedicine
Volume71
DOIs
StatePublished - May 2024
Externally publishedYes

Keywords

  • Colorectal cancer survivorship
  • Longitudinal analysis
  • Patient care
  • Post-diagnostic dietary intake

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