Psychometric Testing of the Thai Version of Self-Care of Chronic Illness Inventory Version 4c in Patients With Stroke
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Insights
The Self-Care of Chronic Illness Inventory (version 4c) shows strong psychometric properties for assessing self-care in Thai stroke patients. This validated tool aids in understanding and managing chronic illness self-care post-stroke.
Area of Science:
- Health Measurement Instruments
- Psychometrics
- Stroke Rehabilitation
Background:
- The Self-Care of Chronic Illness Inventory (version 4c) is a non-disease-specific measure for individuals with multiple chronic conditions.
- It is applicable to specific conditions like stroke, aiding in comprehensive patient assessment.
Purpose of the Study:
- To evaluate the psychometric properties of the Thai version of the Self-Care of Chronic Illness Inventory (version 4c).
- To assess its validity and reliability in patients diagnosed with stroke.
Main Methods:
- A multicenter, cross-sectional study following COSMIN guidelines.
- Structural validity, internal consistency, and test-retest reliability were assessed in 350 stroke patients across 16 primary care centers in southern Thailand.
Main Results:
- Confirmatory factor analysis supported the proposed factor structures for Self-Care Maintenance, Monitoring, and Management scales.
- Adequate internal consistency (Cronbach's α, ω) and composite reliability were found for all scales.
- Test-retest reliability, assessed via intraclass correlation coefficients, was adequate for all scales (range, 0.76-0.90).
Conclusions:
- The Thai version of the Self-Care of Chronic Illness Inventory (version 4c) demonstrates robust psychometric properties in stroke patients.
- This instrument is a valuable tool for assessing stroke self-care in the Thai population.
Background:
Self-Care of Chronic Illness Inventory version 4c is a non-disease-specific self-care measure used in individuals with multiple chronic conditions. This instrument may be applied to patients with specific diseases such as stroke.
Objective:
The aim of this study was to evaluate the psychometric properties of the Thai version of the Self-Care of Chronic Illness Inventory version 4c in patients with stroke.
Methods:
This multicenter, cross-sectional study adhered to the COSMIN (Consensus-based Standards for the Selection of Health Measurement Instruments) guidelines and enrolled patients with stroke from 16 primary care centers in southern Thailand. Structural validity was assessed using confirmatory factor analysis, internal consistency reliability using Cronbach α coefficient and global reliability index, and test-retest reliability using intraclass correlation coefficients.
Results:
The final analysis included a total of 350 participants. Confirmatory factor analysis supported the 2-factor Self-Care Maintenance scale structure, although the item allocation to the dimensions differed from that of the original model. The Self-Care Monitoring scale demonstrated a 1-factor structure with permitted residual covariance. The Self-Care Management scale maintained a 2-factor structure, similar to that of the original model. Simultaneous confirmatory factor analysis of the combined items supported the general model with the 3 scales. The Self-Care Maintenance scale exhibited marginally adequate α (0.68) and ω (0.66) coefficients, and an adequate composite reliability index (0.79). The other 2 scales demonstrated adequate α (range, 0.79-0.86), ω (range, 0.75-0.86), and composite reliability (range, 0.83-0.86) indices. Intraclass correlation coefficients showed adequate test-retest reliability for all scales (range, 0.76-0.90).
Conclusions:
The generic self-care measure, Self-Care of Chronic Illness Inventory version 4c, demonstrated strong psychometric properties in patients with stroke. This instrument may be a valuable tool for assessing stroke self-care in Thailand.
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