Association between sleep and quality of life in heart failure patient-caregiver dyads and mediation of fatigue: An actor-partner interdependence mediation model

Depressive Symptoms and Sleep Quality Mediate the Relationship Between Race and Quality of Life Among Patients With Heart Failure: A Serial Multiple Mediator Model

BACKGROUND

Black patients with heart failure (HF) report worse quality of life (QoL) than White patients. Few investigators have examined mediators of the association between race and QoL, but depressive symptoms and sleep quality are associated with QoL.

OBJECTIVE

The aim of this study was to determine whether depressive symptoms and sleep quality are mediators of the relationship between race and QoL among patients with HF.

METHODS

This was a cross-sectional study. We included 271 outpatients with HF. Self-reported race (White/Black), depressive symptoms (Patient Health Questionnaire), sleep quality (Pittsburgh Sleep Quality Index), and QoL (Kansas City Cardiomyopathy Questionnaire) were collected at baseline. A serial multiple mediator analysis was conducted using the PROCESS macro for SPSS.

RESULTS

Ninety-six patients (35.4%) were Black. Black participants reported higher levels of depressive symptoms and poorer sleep quality than White participants. Race was not directly associated with QoL but indirectly associated with QoL through depressive symptoms and poorer sleep quality. Because of higher levels of depressive symptoms and poorer sleep quality, Black participants reported poorer QoL than White participants.

CONCLUSIONS

Depressive symptoms and sleep quality together mediated the relationship between race and QoL. These findings suggest that screening for depressive symptoms and sleep quality could identify patients at risk for poor QoL, especially in Black patients.

The dyadic relationship of supportive care needs with quality of life in lung cancer survivor and spousal caregiver couples

Objective

This study aimed to explore the dyadic interrelationships between supportive care needs (SCNs) and quality of life (QOL) among lung cancer (LC) survivors and their spousal caregivers.

Methods

In this cross-sectional study, 443 dyads were recruited from three tertiary hospitals in two cities (Fuzhou and Putian) in Fujian Province, China, between May 2020 and May 2021. The study shows that participants completed a sociodemographic information sheet, the SCNs survey, and answered the Chinese version of the World Health Organization Quality of Life-BREF questionnaire by telephone. The data were analyzed using descriptive statistics and Pearson's correlations. This study used the actor-partner interdependence model (APIM) with dyad analysis to examine the effect of LC survivors and spouses unmet SCNs on QOL.

Results

LC survivor's and spouse's QOL levels were influenced by the level of unmet SCNs (the actor effect). LC survivors unmet SCNs were significantly negatively associated with their spouse's QOL (the partner effect). There were no partner effects between the spouse's unmet SCNs and the LC survivor's QOL. The APIM model produced an acceptable model fit [χ2/df = 2.84 (147), comparative fit index (CFI) = 0.94, Tucker-Lewis index (TLI) = 0.93, root mean square error of approximation (RMSEA) = 0.07].

Conclusions

The level of unmet SCNs significantly affected QOL in survivor and spouse dyads. Although partner effects were weaker than actor effects, healthcare providers should develop tailored LC dyadic self- and family-management interventions to provide SCN-driven care to LC survivors and their spouses.

Person with Heart Failure and Care Partner Dyads: Current Knowledge, Challenges, and Future Directions: State-of-the-Art Review

Over the past decade, there has been substantial growth in heart failure (HF) research that focuses on persons with HF and their care partners (family members or other close friends that provide unpaid support) as an interdependent team, or care dyad. In this state-of-the-art review, we use a dyadic lens to identify and summarize current research on HF care dyads, from qualitative studies, to nonexperimental quantitative studies, to randomized controlled trials. Although much work has been done, this literature is younger and less well-developed than care dyad literatures from other conditions (eg, cancer, Alzheimer's disease). We discuss the substantial challenges and limitations in this body of work, with an eye toward addressing common issues that impact rigor. We also look toward future directions, and discuss the promise dyadic research holds for improving patient, care partner, and relationship health.