Psychometric Characteristics of the Caregiver Contribution to Self-care of Heart Failure Index in a South American Population

Psychometric testing of the Thai version of Caregiver Contribution to Self-Care of Chronic Illness Inventory version 2

AIM

To assess the psychometric properties of the Thai version of Caregiver Contribution to Self-Care of Chronic Illness Inventory version 2 (CC-SC-CII-v2) among primary caregivers of individuals with any single or multiple chronic illnesses.

BACKGROUND

The instrument encompasses three scales that evaluate Caregiver Contribution to Self-Care (CC-SC) Maintenance, Monitoring and Management.

METHODS

The English version CC-SC-CII-v2 was translated and adapted for Thai context, and a cross-sectional multicenter study involved 430 caregivers from 16 primary care centres in Thailand. Structural validity, internal consistency reliability and test-retest reliability were examined.

RESULTS

The original two-factor CC-SC Maintenance scale required a re-specified model for good fit, while the CC-SC Monitoring and CC-SC Management scales fit well. The simultaneous model of three scales demonstrated satisfactory fit. The CC-SC Maintenance and CC-SC Management scales both had a composite reliability index of 0.85, with omega coefficients of 0.86 and 0.83, respectively. CC-SC Monitoring had an alpha coefficient of 0.89. The intraclass correlation coefficients ranging from 0.84 to 0.91, indicating good test-retest reliability.

CONCLUSION

The Thai CC-SC-CII-v2 is a valid and reliable instrument that can provide clinicians and investigators with an evaluation of the contributions of caregivers to the self-care of patients with chronic illnesses.

A psychometrics evaluation of the Thai version of Caregiver Contribution to Self-Care of Chronic Illness Inventory Version 2 in stroke caregivers

Objectives

To evaluate the psychometric characteristics of the Thai version of Caregiver Contribution to Self-Care (CC-SC) of Chronic Illness Inventory version 2 (CC-SC-CII-v2) in stroke caregivers.

Methods

We conducted a multicenter, cross-sectional study following the COSMIN guidelines, evaluating validity and reliability of three separate scales, CC-SC Maintenance, CC-SC Monitoring, and CC-SC Management, as well as overall CC-SC-CII-v2. From September to December 2022, we enrolled 422 stroke caregivers from primary care centers in southern Thailand. Structural validity was assessed through confirmatory factor analysis (CFA), while concurrent validity was evaluated using Pearson's correlation r coefficients between CC-SC-CII-v2 and the Caregiver Self-Efficacy in Contributing to Patient Self-Care Scale (CSE-CSC). Internal coherence reliability was assessed using Cronbach's α coefficient, the composite reliability index, and the McDonald's ω coefficient. Additionally, test-retest reliability was assessed with intraclass correlation coefficients (ICCs).

Results

The study included mostly middle-aged women who cared for their parent. CFA supported the two-factor structure of the CC-SC Maintenance and Management scales and the one-factor structure of the CC-SC Monitoring scale. A simultaneous CFA on the combined set of items supported the more general model. The concurrent validity of CC-SC-CII-v2 with CSE-CSC was established (r ranging 0.47-0.65, all P < 0.001). Reliability estimates supported adequate Cronbach's α coefficient (ranging 0.83-0.89), composite reliability (ranging 0.84-0.85), McDonald's ω coefficients (ranging 0.83-0.85), and ICCs (ranging 0.86-0.90) across the three scales.

Conclusions

The Thai CC-SC-CII-v2 demonstrated strong psychometric properties among stroke caregivers. It can be a valuable instrument to investigate the role of caregivers in contributing to stroke patients' self-care in diverse cultural contexts like Thailand.

The adaptation to Turkish of the caregiver contributions to selfcare of heart failure index: a validity and reliability study

Objective: Although heart failure is a chronic and progressive disease, it is also a disease that requires the patient and caregivers who are not healthcare professionals to spend many years together in the process of follow-up, treatment, and care. Correct evaluation of the patient and caregiver in this process is one of the most important points that will guide the process. The aim of this study was to conduct a validity and reliability study of the Turkish version of the Caregiver Contributions to Self-Care of Heart Failure Index v.2- (CC-SCHFI) and to determine the contributions of caregivers of patients with heart failure. Material and Method: The study sample was formed of the caregivers of patients who presented at a training and research hospital with a diagnosis of heart failure, who voluntarily agreed to participate in the research. Data were collected using a Personal Information Form and the CC-SCHFI. For the reliability study of the language adaptation of the CC-SCHFI, the internal consistency coefficient and the item-total points reliability coefficient were used, and to determine structure validity, Explanatory Factor Analysis (EFA) and Confirmatory Factor Analysis (CFA) were applied. Results: The cultural adaptation to Turkish of the CC-SCHFI was found to be high. In the validity and reliability study, the structure validity and internal consistency were high and it was concluded that the scale could be used under the sub-dimension headings of “Recommendations for Protection”, “The Role of the Caregiver in Treatment Compliance”, and “Caregiver Practices”.

Factors associated with caregivers' contribution to self-care in heart failure

OBJECTIVE

to analyze the caregiver's contribution to self-care in heart failure and the predictor variables of this contribution.

METHOD

a cross-sectional descriptive and analytical study, with the participation of 140 dyads (patients and caregivers). The contribution to self-care was assessed using the Caregiver Contribution to Self-Care of Heart Failure Index. Caregivers and patients were interviewed separately to obtain the data. Multiple linear regressions were used to verify predictor variables of caregiver contribution.

RESULTS

the mean score for contribution to maintenance self-care was 62.7 (SD=7.1), for management, 62.9 (SD=20.4) and for confidence was 63.3 (SD=22.1). The variables number of patient's medications, caregiver being related to the patient, social perception of caregiver, health-related quality of life of the patient and caregiver's confidence in contributing to self-care were predictors of caregiver's contribution to maintenance or management self-care.

CONCLUSION

the caregiver's contribution was insufficient. The social support perceived by the caregiver, the type of relationship the caregiver to the patient, the number of medications used by the patient, as well as the caregiver's confidence in contributing to self-care are variables that should be considered to assess the risk of insufficient contribution of the caregiver.

Patient Self-Care and Caregiver Contribution to Patient Self-Care of Chronic Conditions: What Is Dyadic and What It Is Not

OBJECTIVES

Self-care of chronic conditions involves both patients and their informal caregivers and therefore might be considered as a dyadic phenomenon. Nevertheless, empirical evidence supporting a dyadic construct is unavailable. This study aimed to explore the existence of a dyadic construct in self-care maintenance, monitoring, and management in patients affected by chronic conditions and their informal caregivers.

METHODS

This study used a cross-sectional design. We used the Self-Care of Chronic Illness Inventory and the Caregiver Contribution to Self-Care of Chronic Illness Inventory, which measure patient self-care and informal caregivers' contribution to self-care maintenance, monitoring and management. Exploratory Structural Equation Modeling was performed to verify the existence of dyadic latent constructs in each scale in patients and informal caregivers.

RESULTS

A convenience sample of 493 patients and informal caregivers, with a mean age of 76.47 and 52.76 years, respectively, was studied. In the self-care maintenance scales, 2 correlated factors (r = 0.34, P < .001) were identified, indicating the presence of a dyadic second-order construct. In addition, 2 factors that were not correlated (r = 0.11, P = .064) were identified in the self-care monitoring scales, indicating the absence of a dyadic construct. Finally, we found a 3-factor model in the self-care management scales composed of both patient and caregiver items, indicating a dyadic first-order construct.

CONCLUSIONS

Knowing which care behaviors are dyadic in chronic conditions is important for tailoring interventions to improve self-care. Self-care maintenance and management would benefit from dyadic interventions, while self-care monitoring would not. The results of this study may illuminate future theoretical and scientific developments in dyadic care of chronic illness.

Spanish Version of the Caregiver Contribution to Self-Care of Heart Failure Index (CC-SCHFI): A Psychometric Evaluation

Background: The Caregiver Contribution to Self-Care of Heart Failure (CC-SCHFI) is a theoretically driven instrument to measure the extent to which caregivers support heart failure (HF) patients to perform self-care. The CC-SCHFI measures caregivers’ contribution to self-care maintenance and self-care management and caregiver confidence in contributing to heart failure patients’ self-care. To date, the CC-SCHFI has never been tested in Spanish-speaking populations. Purpose: To translate the CC-SCHFI from English into Spanish and to test its psychometric characteristics. Method: CC-SCHFI translation and back-translation were performed according to the Beaton et al. methodology. Data from a cross-sectional study conducted in an outpatient clinic in Spain were used for the analysis. Psychometric analysis was performed with exploratory factor analysis (EFA) with oblique rotation. Results: Caregivers had a mean age of 60.5 years (SD 14,9) and the majority were female (85%). Data from 220 caregivers were analyzed. From EFA, using the principal axis factoring method, we extracted two factors in the self-care maintenance subscale (“treatment adherence behaviors” and “symptom control and maintenance behaviors”), two in the self-care monitoring subscale (“illness behaviors” and “prevention behaviors”) and one factor for the self-efficacy subscale. The Pearson’s rank correlation coefficients between SCHFI and CCSCHFI showed significant correlation in each subdimension.

Factores asociados a la contribución de los cuidadores para el autocuidado de la insuficiencia cardiaca

Resumen Objetivo: analizar la contribución del cuidador para el autocuidado en la insuficiencia cardiaca y las variables predictoras de esa contribución. Método: estudio transversal descriptivo y analítico, con la participación de 140 díadas (pacientes y cuidadores). La contribución para el autocuidado fue evaluada por medio del Caregiver Contribution to Self-Care of Heart Failure Index. Los cuidadores y pacientes fueron entrevistados separadamente para obtención de los datos. La regresión linear múltiple fue utilizada para verificar variables predictoras de la contribución del cuidador. Resultados: la puntuación media de contribución para el autocuidado de manutención fue 62,7 (DE=7,1), de administración fue 62,9 (DE=20,4) y de confianza fue 63,3 (DE=22,1). Las variables: número de medicamentos del paciente, cuidador tener parentesco con el paciente, percepción social del cuidador, calidad de vida relacionada a la salud del paciente y la confianza del cuidador en la contribución para el autocuidado, fueron predictoras de la contribución del cuidador para el autocuidado de manutención o de administración. Conclusión: la contribución del cuidador fue insuficiente. El apoyo social percibido por el cuidador, el cuidador tener o no parentesco con el paciente, el número de medicamentos utilizados por el paciente y la confianza del cuidador en contribuir para el autocuidado, son variables que deben ser consideradas para evaluar el riesgo de contribución insuficiente del cuidador.

Factors associated with caregivers’ contribution to self-care in heart failure

Objective:

to analyze the caregiver’s contribution to self-care in heart failure and the predictor variables of this contribution.

Method:

a cross-sectional descriptive and analytical study, with the participation of 140 dyads (patients and caregivers). The contribution to self-care was assessed using the Caregiver Contribution to Self-Care of Heart Failure Index. Caregivers and patients were interviewed separately to obtain the data. Multiple linear regressions were used to verify predictor variables of caregiver contribution.

Results:

the mean score for contribution to maintenance self-care was 62.7 (SD=7.1), for management, 62.9 (SD=20.4) and for confidence was 63.3 (SD=22.1). The variables number of patient’s medications, caregiver being related to the patient, social perception of caregiver, health-related quality of life of the patient and caregiver’s confidence in contributing to self-care were predictors of caregiver’s contribution to maintenance or management self-care.

Conclusion:

the caregiver’s contribution was insufficient. The social support perceived by the caregiver, the type of relationship the caregiver to the patient, the number of medications used by the patient, as well as the caregiver’s confidence in contributing to self-care are variables that should be considered to assess the risk of insufficient contribution of the caregiver.

A psychometric evaluation of the Caregiver Contribution to Self-Care of Heart Failure Index in a Thai population

BACKGROUND

Caregivers are major contributor to the self-care of patients with heart failure. The Caregiver Contribution to Self-Care of Heart Failure Index (CC-SCHFI) measures these contributions across three scales: self-care maintenance (symptom monitoring and treatment adherence); self-care management (dealing with symptoms); and confidence in contributing to the self-care (self-efficacy in managing self-care) of patients with heart failure. Informal caregivers play a vital role in supporting family members with heart failure in Thailand, yet no validated tool exists to measure their contribution. We examined the psychometric properties of the CC-SCHFI in a Thai population.

METHODS

The CC-SCHFI was translated into Thai using a standard forward and backward translation procedure. A cross-sectional design was used to examine the psychometric properties of the Thai version of the CC-SCHFI in 100 family caregivers of heart failure patients in Southern Thailand. Confirmatory factor analysis was used to assess construct validity, and factor score determinacy coefficients were computed to evaluate internal consistency reliability.

RESULTS

The Thai version of the CC-SCHFI demonstrated acceptable internal consistency (composite reliability of each scale ranged from 0.76 to 0.99). Reliability estimates were adequate for each scale (McDonald's omega ranged from 0.75 to 0.96). Confirmatory factor analysis supported the original factor structure of the instrument, with good fit indices for all three scales (comparative fit index = 0.98-1.00; root-mean-square error of approximation = 0.00-0.07).

CONCLUSIONS

The Thai version of the CC-SCHFI appears to be a valid and reliable instrument for measuring caregiver contributions to self-care maintenance and self-care management as well as contributing to caregiver confidence in the self-care of Thai heart failure patients.

The influence of dyadic congruence and satisfaction with dyadic type on patient self-care in heart failure

BACKGROUND

Chronic illness management is increasingly carried out at home by individuals and their informal caregivers (dyads). Although synergistic in concept, the nuances of dyadic congruence in caring for patients with heart failure are largely unexamined.

AIMS

The purpose of this study was to examine the role of dyadic-type congruence on patient self-care (maintenance, symptom perception, and management) while controlling for actor and partner effects.

METHODS

This secondary data analysis of 277 dyads consisted of a series of multilevel models to examine the impact of dyadic congruence on a patient's self-care maintenance, symptom perception, and self-care management. Patient-level and caregiver-level data were input into each model simultaneously to account differential appraisals of factors related to the dyad.

RESULTS

Bivariate analyses yielded dyad congruence which was associated with better patient self-care maintenance, symptom perception and management. However, after multilevel models were constructed, dyad congruence was found to be a significant predictor of patient's symptom perception scores, but not self-care maintenance or management scores. Caregiver's satisfaction with the dyad was differentially and significantly associated with self-care - it was inversely associated with patient self-care maintenance and positively associated with patient self-care management.

CONCLUSION

This is the first study, to our knowledge, reporting that congruence in heart failure dyads is associated with better patient symptom perception and this advances our prior hypothesis that dyad typologies could be used to predict patient self-care performance. Since symptom perception is the key to preventing heart failure exacerbation, screening heart failure patient and caregiver dyads for congruence is important in clinical settings.