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. 2023 Jun 27:9:e44486.
doi: 10.2196/44486.

The Association Between Family Health and Frailty With the Mediation Role of Health Literacy and Health Behavior Among Older Adults in China: Nationwide Cross-Sectional Study

Haomiao Li #  1 , Yibo Wu #  2 , Zhongliang Bai #  3   4 , Xiwu Xu  5 , Dai Su  6 , Jiangyun Chen  7 , Ruibo He  1   8 , Ju Sun  1
Affiliations

The Association Between Family Health and Frailty With the Mediation Role of Health Literacy and Health Behavior Among Older Adults in China: Nationwide Cross-Sectional Study

Haomiao Li et al. JMIR Public Health Surveill. .

Abstract

Background: Family health develops from the intersection of the health of each family member and their interactions and capacities as well as the family's internal and external resources. Frailty is the most prominent and typical clinical manifestation during population aging. Family health may be effective in addressing frailty, and this association may be mediated by health literacy and health behaviors. Until now, it is unclear whether and how family health affects frailty in older adults.

Objective: This study aimed to examine the associations between family health and frailty and the mediation roles of health literacy and health behaviors.

Methods: A total of 3758 participants aged ≥60 years were recruited from a national survey conducted in 2022 in China for this cross-sectional study. Family health was measured using the Short Form of the Family Health Scale. Frailty was measured using the Fatigue, Resistance, Ambulation, Illnesses, and Loss of weight (FRAIL) scale. Potential mediators included health literacy and health behaviors (not smoking, not having alcohol intake, physical exercise for ≥150 minutes per week, longer sleep duration, and having breakfast every day). Ordered logistic regression was applied to explore the association between family health and frailty status. Mediation analysis based on Sobel tests was used to analyze the indirect effects mediated by health literacy and behaviors, and the Karlson-Holm-Breen method was used to composite the indirect effects.

Results: Ordered logistic regression showed that family health is negatively associated with frailty (odds ratio 0.94, 95% CI 0.93-0.96) with covariates and potential mediators controlled. This association was mediated by health literacy (8.04%), not smoking (1.96%), longer sleep duration (5.74%), and having breakfast every day (10.98%) through the Karlson-Holm-Breen composition.

Conclusions: Family health can be an important intervention target that appears to be negatively linked to frailty in Chinese older adults. Improving family health can be effective in promoting healthier lifestyles; improving health literacy; and delaying, managing, and reversing frailty.

Keywords: family health; frailty; health behavior; health literacy; healthy aging.

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Conflict of interest statement

Conflicts of Interest: None declared.

Figures

Figure 1
Figure 1
Sample selection process for this cross-sectional study.
Figure 2
Figure 2
Smooth curve fitting for the association between family health and frailty, with all covariates and potential mediators controlled.
Figure 3
Figure 3
Mediation analysis of the association between family health and frailty. ***Indicates that the statistically significant association at α=.001 level.
See this image and copyright information in PMC

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