Impacto en la calidad de vida en cuidadores de supervivientes de un ictus

Depression Mediates the Association Between Burden and Quality of Life in Informal Caregivers of Stroke Survivors: Meta-analytic Structural Equation Modeling

OBJECTIVE

This study aims to use Meta-analytical structural equation modeling (MASEM) to clarify the relationship between burden, depression, and quality of life in informal caregivers of stroke survivors.

DATA SOURCES

The databases of PubMed, Cochrane Library, Embase, China Knowledge Resource Integrated Database, Wan Fang Database, and Chinese Biomedical Database were comprehensively searched before January 16, 2023.

STUDY SELECTION

Two researchers performed an independent initial search by using a unified search strategy. Observational studies investigating the relation between burden, depression, and quality of life in informal caregivers of stroke survivors were included. The studies that met the inclusion criteria were appraised by "Quality Assessment and Validity Tool for Correlational Studies".

DATA EXTRACTION

PRISMA guidelines were used for this study. Data extraction was performed independently by 2 researchers. The following data were extracted: study author, year of publication, country, language, sample size, age, sex (%women), the caregivers' relation with stroke survivor, measures, type of outcome reported in the study, study design, and main conclusion.

DATA SYNTHESIS

The analysis included 18 articles that reported 23 effect sizes (N=3284). The MASEM findings showed that caregiver burden was positively associated with caregiver depression (β=0.474, 95% CI [0.398, 0.550]), caregiver depression was negatively associated with caregiver quality of life (β=-0.316, 95% CI [-0.545, -0.087]). Furthermore, the association between caregiver burden and quality of life was completely mediated by caregiver depression (β=-0.150, 95% CI [-0.271, -0.041]).

CONCLUSIONS

Using the MASEM approach, we observed that caregiver depression completely mediated the relation between burden and quality of life in informal caregivers of stroke survivors. Although the results did not allow for causal inference, this result suggested that for burdened stroke survivors' informal caregivers efforts should be made to their mental health to eliminate the internal barriers, then eventually improve their quality of life.

A scoping review on studies about the quality of life of informal caregivers of stroke survivors

PURPOSE

To assess the available evidence regarding the quality of life (QoL) of informal caregivers of stroke survivors, by identifying the instruments used to assess QoL, and its associated characteristics.

METHODS

A scoping review was performed, following PRISMA-ScR guidelines. The electronic databases PubMed, ISI Web of Science, PsycINFO, and SciELO were searched for empirical, peer-reviewed, original, and full-length studies on the characteristics influencing the QoL of informal caregivers of stroke survivors. Eligibility and data extraction were conducted by two independent researchers. The main quantitative findings were synthesized, and qualitative data were explored by thematic content analysis.

RESULTS

The included studies, 56 quantitative, 1 qualitative, and 1 mixed methods, were published between 1999 and 2020. A high heterogeneity was found regarding the assessment of QoL, and the characteristics influencing it. Only one study used an instrument specifically designed to assess the stroke caregivers' QoL. The QoL of informal caregivers was inversely associated with physical and mental health of stroke survivors and caregivers, while stroke characteristics with a better prognosis, caregivers' positive relationships, and a more supportive and participative social context were positively associated to QoL.

CONCLUSION

There is a need for standardizing the assessment of the QoL of informal caregivers of stroke survivors, as well as for investing in cross-country/cultural studies with robust mixed methods designs to allow a deeper understanding of the experiences of caregivers. Further research, policies, and practices should consider the diversity and complexity of the characteristics influencing QoL, to empower informal caregivers and improve their QoL.

Burden and Quality of Life of Family Caregivers of Stroke Patients

The purpose of this study was to identify the level of burden and quality of life of family caregivers of stroke patients and to investigate the correlation between burden, quality of life (including physical, social, psychological, and environmental domains), age of caregivers, and the care period. A descriptive correlational cross-sectional study was performed, with a convenience sample of family caregivers (n = 30) of stroke patients in São Paulo, Brazil. Data were collected using a questionnaire on participants' characteristics, the Zarit Burden Interview Scale (ZBIS), and the World Health Organization Quality of Life-BREF (WHOQOL-BREF) instrument. A descriptive analysis was performed, and correlations between variables were analyzed using Pearson's product-moment correlation coefficient. The average burden score on the ZBIS was 29.6, representing a moderate burden, and the average overall quality of life score on the WHOQOL-BREF was 62.06%, which indicates moderate quality of life. A significant weak negative correlation was observed between burden and environmental domains (r = -0.470; p =.009), quality of life (r = -0.414; p =.023), and physical domains (r = -0.394; p =.031). No significant correlations were found between burden and quality of life, and variables in the psychological and social domains, age of caregivers, or care period. Caregivers for stroke patients presented with moderate levels of burden and reduction in quality of life. Levels of burden correlated negatively with environmental domains, quality of life levels, and physical domains; however, these correlations were weak, indicating the possible interference of other factors.