Study2026

Title: Ultra-processed food intake and postmenopausal breast cancer risk in the NIH-AARP diet and health study

O'Connell CP, Burns KF, Hong HG, Kahle L, Liao LM, Madrigal JM, Rising CJ, Sinha R, Khandpur N, Martínez Steele E, Gierach G, Loftfield E

Journal of the National Cancer Institute · 0 citations

Review labels

Food frequency questionnaireNo stated lifestyle adjustment

Neutral facts our review recorded about how this study was done. They describe method, never whether we like the result.

How it was studied

Design
Cohort study (classified by our AI screen)
Studied in
People
Main outcome
Clinical events such as disease or death
Intake measured by
Food frequency questionnaire

Who paid for it

Funding
Independent funding
Government
U.S. Department of Health and Human Services
Government
National Institutes of Health
Government
Intramural Research Program of the National Institutes of Health
Government
US Department of Health and Human Services
Government
NIH

Based on 5 listed funder(s).

Publication

Published
2026-04-17 · J Natl Cancer Inst
Publisher
Oxford University Press
Cited
1 citation · more than 96% of similar papers · 7.2× the field average
Impact
Top 10% most cited in its field
References
28 works
Access
Open access (repository copy) · PUBLIC-DOMAIN
Research areas
Nutritional Studies and Diet · Cancer Risks and Factors · Consumer Attitudes and Food Labeling
Keywords
Breast cancer, Food intake, Postmenopausal women, Cancer, Alcohol intake, Cohort study, Body mass index

12 authors

From US, NL, BR

  • Caitlin P. O’ConnellNational Cancer Institute; Department of Health and Human Services
  • Kaelyn F BurnsNational Cancer Institute; Department of Health and Human Services
  • Hyokyoung G. HongNational Cancer Institute; Department of Health and Human Services
  • Lisa KahleInformation Management Services
  • Linda M. LiaoNational Cancer Institute; Department of Health and Human Services
  • Jessica M. MadrigalIllinois Department of Public Health; National Cancer Institute; Department of Health and Human Services; University of Illinois at Springfield

Abstract

Background

UPF intake is associated with obesity. Despite obesity being a risk factor for postmenopausal breast cancer, evidence for an association between UPF and breast cancer is limited. Our objective was to assess the association between UPF intake and postmenopausal breast cancer risk in the NIH-AARP Diet and Health Study.

Methods

Participants reported dietary intake via a food frequency questionnaire at baseline in 1995 to 1996 and were followed through 2018. Food items were disaggregated into food codes and assigned Nova classification via database linkage. Multivariable Cox proportional hazards regression models were used to estimate hazard ratios (HR) and 95% confidence intervals (CI) for quintiles of UPF (g/1000 kcal/day) and postmenopausal breast cancer risk overall, by estrogen receptor (ER) status, and type (invasive or ductal carcinoma in situ (DCIS)), with and without adjustment for body mass index (BMI).

Results

Among 181,460 postmenopausal women, 14,484 were diagnosed with breast cancer over a median 21 years of follow-up. Median (IQR) UPF intake was 284.6 (191.1 to 466.6) g/1000 kcal/day. No associations between UPF intake and postmenopausal breast cancer risk overall (HRQ5vs.Q1=0.98, 95% CI = 0.93-1.03; Ptrend=0.32), by ER status (ER+ HRQ5vs.Q1=1.01, 95% CI = 0.94-1.09; P trend=0.95; ER-: HRQ5 vs Q1=1.02, 95% CI = 0.87-1.20; P trend=0.58), or by type (invasive: HRQ5vs.Q1=0.98, 95% CI = 0.92-1.04; P trend=0.14; DCIS HRQ5vs.Q1=1.00, 95% CI = 0.87-1.13; P trend=0.26) were observed. Following BMI adjustment, inverse trends for overall (P trend=0.03) and invasive (P trend=0.01) breast cancer were observed.

Conclusion

UPF intake was not associated with postmenopausal breast cancer in the NIH-AARP cohort. Inverse trends observed after adjusting for BMI are likely spurious, owing to over-adjustment.

Abstract via Europe PMC. Copyright remains with the authors or publisher.

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