Rural and Urban Differences in Vegetable and Fruit Consumption Among Older Cancer Survivors in the Deep South: An Exploratory Cross-Sectional Study

Harleen Kaur, José R Fernández, Julie L Locher, Wendy Demark-Wahnefried, Harleen Kaur, José R Fernández, Julie L Locher, Wendy Demark-Wahnefried

Abstract

Background: Cancer survivors, especially those who are older, experience increased comorbidity and risk for secondary cancers. A varied dietary pattern rich in vegetables and fruits (V&F) is recommended to improve health. However, V&F intake can differ by rural vs urban status.

Objective: Our objective was to assess the differences in V&F consumption among older cancer survivors residing in urban- and rural-designated areas, and to explore whether differences exist according to sex, race, and cancer type.

Design: This was a cross-sectional secondary analysis.

Participants/setting: Screening data from the Harvest for Health trial were obtained from October 2016 to November 2019 on 731 Medicare-eligible cancer survivors across Alabama.

Main outcome measures: V&F consumption was measured by 2 items from the National Cancer Institute's dietary screener Eating at America's Table. Rural and urban residence was coded at the ZIP-code level using the US Department of Agriculture's Rural-Urban Commuting Area coding schema using 5 different classifications (A through E). Sex, race, and cancer type were dichotomized as male or female, non-Hispanic White or non-Hispanic Black, and gastrointestinal or other cancers, respectively.

Statistical analyses: Kruskal-Wallis rank sum and post-hoc tests were performed to detect differences in V&F consumption (α < .05).

Results: The study sample was largely female (66.2%) and non-Hispanic White (78.1%); mean age was 70 years and reported average V&F intake was 1.47 cups/d. V&F consumption of cancer survivors living in isolated, small, rural towns was roughly one-half that consumed by survivors living elsewhere; thus, statistically significant rural-urban differences were found in models that accounted specifically for this subgroup, that is, Rural-Urban Commuting Area categorizations A and E. V&F consumption also was significantly lower in non-Hispanic Black (1.32 ± 0.98 cups/d) than non-Hispanic White survivors (1.51 ± 1.10 cups/d) (P = .0456); however, no statistically significant differences were detected by sex and cancer type.

Conclusions: Analyses that address the variability within rural-designated areas are important in future studies. Moreover, a greater understanding is needed of factors that adversely affect V&F consumption of those most vulnerable, that is, older, non-Hispanic Black cancer survivors, as well as those living in isolated, small, rural towns to best target future interventions.

Trial registration: ClinicalTrials.gov: NCT02985411.

Keywords: Aged; Cancer survivors; Fruits; Rural health; Vegetables.

Conflict of interest statement

STATEMENT OF POTENTIAL CONFLICT OF INTEREST

No potential conflict of interest was reported by the authors.

Copyright © 2022 Academy of Nutrition and Dietetics. Published by Elsevier Inc. All rights reserved.

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