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A Network Analysis of Health Literacy, Social Support, Spiritual Coping, Mutuality, and Self-Care in Patients with Chronic Heart Failure

This network analysis of 280 chronic heart failure patients reveals that communicative health literacy and subjective support are central to self-care, while positive spiritual coping and communicative health literacy act as critical bridges connecting distinct psychosocial communities, suggesting that nursing interventions should target these specific factors to enhance self-care management.

Original authors: Xiong Dan, Miao Yang, Xiaxuan Ye, Siyu Gong, Cancan Chen, Hongmei Zhang

Published 2026-08-15

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CC BY 4.0

Original authors: Xiong Dan, Miao Yang, Xiaxuan Ye, Siyu Gong, Cancan Chen, Hongmei Zhang

Original paper licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). ✨ This is an AI-generated explanation of the paper below. It is not written or endorsed by the authors. For technical accuracy, refer to the original paper. Read full disclaimer

Imagine your body as a bustling city. When the heart is the engine, chronic heart failure is like that engine sputtering, making the whole city run slower and harder. To keep the city alive, the residents (the patients) have to do a lot of work themselves: checking the fuel gauges, fixing leaks, and keeping the lights on. This is called "self-care." But nobody can run a city alone. They need a map to understand the rules (health literacy), friends to help carry heavy loads (social support), a sense of purpose to keep going when things get tough (spiritual coping), and a good relationship with their helpers (mutuality). Scientists have long known these things matter, but they've mostly looked at them as separate tools in a toolbox. They haven't really figured out how the tools click together, which one is the master switch, and which ones are just sitting on the shelf. This study asks a big question: In the messy, complicated system of a heart failure patient's life, which specific parts are the most important, and how do they talk to each other to keep the patient healthy?

To answer this, researchers gathered 280 patients with chronic heart failure from hospitals in Zhengzhou, China. Instead of just asking, "Does having more friends help?" they used a special kind of map-making called network analysis. Imagine drawing a web where every dot is a specific feeling or skill—like "knowing how to ask a doctor a question," "feeling loved by your spouse," or "noticing when your legs are swelling." The lines connecting the dots show how strongly these things are linked. The thicker the line, the stronger the connection. By looking at this web, the researchers could see which dots were the heavy lifters (central nodes) and which ones acted as bridges connecting different groups of friends.

The map revealed some surprising leaders. The most important "hub" in the entire network was communicative health literacy. Think of this as the patient's ability to not just read a pamphlet, but to actually talk to their doctor, ask questions, and make sure they truly understand what's happening. It was the most connected dot, linking to almost everything else. The second most important hub was subjective support—this isn't about how many people are in your phone book, but how much you feel supported and understood by the people who are there. These two factors formed a powerful "dual core" that held the whole system together.

The study also found some fascinating "bridge" characters. Positive spiritual coping (finding strength or meaning in faith or inner peace) acted as a bridge connecting the world of social support with the world of self-care. Similarly, symptom perception (noticing when something feels wrong) was the bridge that connected the daily routine of self-care to the actual act of managing a crisis. Interestingly, the researchers found that mutuality (the quality of the relationship between patient and caregiver) and negative spiritual coping (feeling abandoned by a higher power) were actually on the outskirts of the map. They were there, but they didn't seem to be the main drivers connecting the other parts of the system.

The numbers back up this picture. The strongest link in the entire web was between feeling supported and actually having objective support (weight = 0.46), followed closely by the link between noticing symptoms and maintaining daily care (weight = 0.36). The "communicative health literacy" node was so central it had a strength score of 1.57, making it the most influential factor in the group. The study suggests that if nurses and doctors want to help patients manage their hearts better, they shouldn't just hand out more information or more visits. Instead, they should focus on teaching patients how to communicate effectively with their care team and helping them feel genuinely heard and supported. While the study can't prove that changing one thing causes the others to change (since it was a snapshot in time), the map strongly suggests that boosting communication skills and perceived support could be the most effective way to strengthen the entire self-care system for people living with heart failure.

Technical Summary: A Network Analysis of Health Literacy, Social Support, Spiritual Coping, Mutuality, and Self-Care in Patients with Chronic Heart Failure

Problem Statement
Chronic heart failure (CHF) requires complex, ongoing self-care behaviors, yet patients often struggle with inadequate self-management. While factors such as health literacy, social support, spiritual coping, and mutuality are known to influence self-care, previous research has largely examined these variables in isolation or through linear mediation models. Consequently, the specific dimension-level interrelationships and the structural organization of these psychosocial resources within a self-care system remain unclear. This study addresses the gap in understanding how specific dimensions of these factors interact as a dynamic system rather than independent predictors.

Methodology
This cross-sectional study recruited 280 patients with CHF from two tertiary Grade A hospitals in Zhengzhou, China. The sample size was determined via Monte Carlo simulation to ensure stability for a sparse Gaussian graphical model with 12 nodes.

Measures: Participants completed validated questionnaires assessing:
- Self-Care: Self-Care of Heart Failure Index (SCHFI v7.2), broken into maintenance, symptom perception, and management.
- Health Literacy: Heart Failure-Specific Health Literacy Scale (HF-SHLS), covering functional, communicative, and critical dimensions.
- Social Support: Social Support Rating Scale (SSRS), covering objective support, subjective support, and support utilization.
- Spiritual Coping: Spiritual Coping Questionnaire (SCQ), distinguishing between positive and negative coping.
- Mutuality: Mutuality Scale (MS).
Network Analysis: A Gaussian graphical model (GGM) was estimated using the graphical least absolute shrinkage and selection operator (GLASSO) regularization to produce a sparse network. Covariates (age, education, disease duration) were adjusted for using the mgm package.
Metrics: The study calculated three centrality indices: strength centrality (sum of edge weights), closeness centrality (average distance to other nodes), and bridge strength (connections between distinct communities). Node predictability ( $R^2$ ) was also computed. Network stability and accuracy were verified using bootstrapping and case-dropping procedures (Correlation Stability coefficients > 0.50).

Key Results
The estimated network comprised 12 nodes representing the dimensions of the measured constructs.

Network Structure: The strongest edge existed between subjective support and objective support (weight = 0.46). Within the self-care domain, the strongest connection was between symptom perception and self-care maintenance (weight = 0.36).
Central Nodes: Communicative health literacy emerged as the most central node, exhibiting the highest strength centrality (1.57) and closeness centrality (1.56). Subjective support was the second most central node (strength = 1.18).
Bridge Nodes: Positive spiritual coping (bridge strength = 0.81) and communicative health literacy (bridge strength = 0.75) served as the primary bridge nodes, connecting distinct psychosocial communities (e.g., linking health literacy, social support, and self-care).
Peripheral Nodes: Mutuality and negative spiritual coping occupied peripheral positions with low strength, closeness, and predictability (negative spiritual coping $R^2$ = 0.10).
Predictability: Most nodes showed moderate to high predictability, with communicative health literacy ( $R^2$ = 0.64) and self-care management ( $R^2$ = 0.63) being the most predictable by their neighbors.

Significance and Claims
The authors claim that this study provides the first dimension-level network perspective on self-care-related factors in CHF. The primary significance lies in shifting the focus from isolated variables to the structural organization of the system:

Identification of Core Drivers: The study identifies communicative health literacy and subjective support as the structural "dual core" of the self-care network. This suggests that interventions targeting the ability to communicate with providers and the perception of support may have broader systemic effects than targeting functional literacy or objective resource quantity alone.
Bridging Mechanisms: The findings highlight positive spiritual coping and communicative health literacy as critical bridges that link different psychosocial communities. This implies that these factors facilitate the flow of influence between cognitive, social, and behavioral domains.
Nuanced Understanding of Self-Care: The network confirms that symptom perception acts as a bridge between self-care maintenance and management, reinforcing the theoretical view that recognizing symptoms is a prerequisite for management.
Clinical Implications: The authors suggest that nursing interventions should prioritize strengthening patient-provider communication (to enhance communicative health literacy), fostering perceived social support, and utilizing spiritual resources. Conversely, the peripheral nature of mutuality and negative spiritual coping in this specific network suggests they may operate through indirect pathways or require different assessment strategies.

The study maintains modesty regarding causality, acknowledging that the cross-sectional design limits causal inference and that the findings represent conditional associations rather than definitive causal pathways. Future longitudinal research is recommended to validate the stability and causal mechanisms of this network structure.

Technical Summary: A Network Analysis of Health Literacy, Social Support, Spiritual Coping, Mutuality, and Self-Care in Patients with Chronic Heart Failure

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