Does Depressive Affect Mediate the Relationship between Self-Care Capacity and Nutritional Status Among Rural Older Adults? : A Structural Equation Modeling Approach

J Nutr Gerontol Geriatr. 2017 Jan-Mar;36(1):63-74. doi: 10.1080/21551197.2017.1281785. Epub 2017 Feb 7.

Abstract

This study examined the relationships of self-care capacity and depressive affect on nutritional status and whether depressive affect mediated the relationship of self-care capacity on nutritional status. A convenience sample of 171 rural community-dwelling older adults, 65 years and above, participated. Structural equation modeling (SEM) was conducted to test a mediation model. The hypothesized SEM model was supported with adequate fit (χ2 (1) = 1.87, p = 0.17; CFI = 0.94; RMSEA = 0.07; SRMR = 0.03). SEM analysis revealed a significant positive direct effect of self-care capacity on nutritional status (γ = 0.14, p = 0.042). Significant negative direct effects were observed for self-care capacity on depressive affect (γ = -0.15, p = 0.027) and for depressive affect on nutritional status (β = -0.27, p < 0.01). Depressive affect was also observed to partially mediate the relationship of self-care capacity on nutrition status (γ = 0.04, p = 0.046). Findings highlight the importance of emotional well-being on rural older adults' nutritional status, particularly those with decreased ability to engage in self-care practices.

Keywords: Rural; depressive affect; nutritional status; older adults; self-care capacity.

MeSH terms

  • Aged
  • Aged, 80 and over
  • Cross-Sectional Studies
  • Depression / psychology*
  • Female
  • Geriatric Assessment
  • Humans
  • Independent Living
  • Male
  • Models, Theoretical
  • Nutrition Assessment
  • Nutritional Status*
  • Rural Population*
  • Self Care*
  • Socioeconomic Factors