ABSTRACT
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.
ABSTRACT
AIMS: Engaging in self-care is an important aspect of the prevention and management of coronary heart disease (CHD), the leading cause of premature death in Thailand. As no validated tool exists to measure self-care in Thai people with CHD, we translated and examined the psychometric properties of the Self-Care of Coronary Heart Disease Inventory Version 3 (SC-CHDI-V3) in a Thai population. METHODS AND RESULTS: The SC-CHDI-V3 was translated into Thai using the standard forward and backward translation procedure for self-care instruments. A cross-sectional design was used to examine the psychometric properties of the Thai version of the SC-CHDI-V3 in 250 patients with confirmed CHD in a tertiary hospital in southern Thailand. Cronbach's alpha and McDonald's omega coefficients were used to assess internal consistency, and confirmatory factor analysis was performed to assess construct validity. The Thai version of the SC-CHDI-V3 demonstrated acceptable internal consistency (Cronbach's alpha and McDonald's omega coefficients of each scale ranged from 0.821 to 0.910). Reliability estimates were adequate for each scale (range 0.863-0.906). Confirmatory factor analysis supported the original factor structure of the instrument, with good fit indices for all three scales (comparative fit index = 0.996-1.000; root mean square error of approximation = <0.001-0.040). CONCLUSIONS: The Thai version of the SC-CHDI-V3 appears to be a valid and reliable instrument for measuring engagement in self-care maintenance, self-care monitoring, and self-care management among Thai people with CHD.
