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The Kidney Transplant Self-Management Scale: Instrument Development and Psychometric Testing
Shu-Yu Chung1, Tamilyn Bakas2, Susan M Rawl1
1School of Nursing, Indiana University-Purdue University Indianapolis, Indianapolis, IN, USA.
Western Journal of Nursing Research
|February 12, 2022
Summary
A new Kidney Transplant Self-Management Scale (KT-SMS) was developed and validated. This 16-item scale effectively measures self-management in kidney transplant recipients across five key domains.
Area of Science:
- Nephrology
- Transplantation Science
- Health Psychology
Background:
- Effective self-management is crucial for kidney transplant recipients to optimize long-term outcomes.
- Existing instruments may not fully capture the multifaceted nature of self-management in this population.
- Developing a validated scale is essential for research and clinical practice.
Purpose of the Study:
- To develop and psychometrically test the Kidney Transplant Self-Management Scale (KT-SMS).
- To assess the validity and reliability of the KT-SMS in a sample of kidney transplant recipients.
Main Methods:
- Instrument development involved conceptualization, item generation, and validity assessments (face, content).
- Psychometric testing included construct validity, internal consistency reliability, and convergent validity.
- Factor analysis identified five domains: medication adherence, cardiovascular risk reduction, protecting kidney, ownership, and skin cancer prevention.
- A cross-sectional sample of 153 kidney transplant recipients was utilized.
Main Results:
- Factor analysis supported a 16-item, five-domain KT-SMS.
- Adequate internal consistency reliability was found for the total scale and subscales.
- Convergent validity was supported by significant correlations between the KT-SMS and its subscales.
- The KT-SMS scores significantly correlated with self-efficacy, patient activation, and health-related quality of life.
Conclusions:
- The 16-item KT-SMS is a multidimensional and psychometrically sound instrument for assessing self-management in kidney transplant recipients.
- The scale demonstrates adequate reliability and validity, supporting its use in research and clinical settings.
- The KT-SMS has potential to enhance understanding and improvement of self-management strategies in this patient group.
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