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Degree of rurality moderates the association of sedentary time with cognitive function in rural patients with cardiac diseases and depressive symptoms

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Abstract

BACKGROUND: Prolonged sedentary time has been linked to impaired cognitive outcomes. However, the impact of sedentary time on cognitive function at different degrees of rurality is not yet well understood in patients with cardiac diseases and depressive symptoms. PURPOSE: To determine whether degree of rurality moderates the relationship between sedentary time and cognitive function. METHODS: This study includes 135 coronary heart disease or heart failure patients, primarily residing in rural Kentucky, including Appalachian areas, United States. Sedentary time was measured by the average daily sedentary time (in minutes) using accelerometry (ActiGraph). Cognitive function was assessed using the Montreal Cognitive Assessment-Blind. Rurality was determined by Rural-Urban Commuting Area (RUCA) codes. Patients were categorized into two groups by rurality: (1) 89 patients in a less rural group (RUCA codes 4-6); and (2) 46 patients in a more rural group (RUCA codes 7-10). Data were collected May 2021-September 2022 and analyzed using the Hayes PROCESS macro in SPSS. RESULTS: Sedentary time predicted cognitive function (B = -0.006, p = 0.019), and this relationship was moderated by rurality (interaction term = 0.006, p = 0.022). Patients living in more rural areas had significantly worse cognitive function when sedentary for longer periods (p = 0.019); specifically, every 100-min increase in sedentary time was associated with a 0.6-point decrease in cognitive function score. However, this relationship was not observed in those living in less rural areas (p = 0.658). CONCLUSIONS: Testing the impact of interventions aimed at reducing sedentary time on cognitive function is warranted in this population, particularly for those living in highly rural areas.

Original languageEnglish
Pages (from-to)e70092
JournalJournal of Rural Health
Volume41
Issue number4
DOIs
StatePublished - Sep 1 2025

Bibliographical note

Publisher Copyright:
© 2025 National Rural Health Association.

Funding

This work was supported through a Patient-Centered Outcomes Research Institute (PCORI) Award (AD-2019C3-17982, D.K. Moser, PI). The statements in this publication are solely the responsibility of the authors and do not necessarily represent the views of the PCORI, its Board of Governors, or Methodology Committee. This work was also supported by the National Institute of Nursing Research of the National Institutes of Health (NIH) under Award Number R01NR020478 (J.R. Wu, PI). The content is solely the responsibility of the authors and does not necessarily represent the official views of the NIH. This work was supported through a Patient‐Centered Outcomes Research Institute (PCORI) Award (AD‐2019C3‐17982, D.K. Moser, PI). The statements in this publication are solely the responsibility of the authors and do not necessarily represent the views of the PCORI, its Board of Governors, or Methodology Committee. This work was also supported by the National Institute of Nursing Research of the National Institutes of Health (NIH) under Award Number R01NR020478 (J.R. Wu, PI). The content is solely the responsibility of the authors and does not necessarily represent the official views of the NIH.

FundersFunder number
National Institute of Health National Institute of Nursing Research
Patient-Centered Outcomes Research InstituteAD‐2019C3‐17982
National Institutes of Health (NIH)R01NR020478

    UN SDGs

    This output contributes to the following UN Sustainable Development Goals (SDGs)

    1. SDG 3 - Good Health and Well-being
      SDG 3 Good Health and Well-being

    Keywords

    • coronary heart disease
    • heart failure
    • moderator
    • rural population
    • sedentary behavior
    • sedentary time

    ASJC Scopus subject areas

    • Public Health, Environmental and Occupational Health

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