Psychometric evaluation of a new instrument to measure disease self-management of the early stage chronic kidney disease patients
Version of Record online: 30 MAY 2012
© 2013 Blackwell Publishing Ltd
Journal of Clinical Nursing
Volume 22, Issue 7-8, pages 1073–1079, April 2013
How to Cite
Lin, C.-C., Wu, C.-C., Wu, L.-M., Chen, H.-M. and Chang, S.-C. (2013), Psychometric evaluation of a new instrument to measure disease self-management of the early stage chronic kidney disease patients. Journal of Clinical Nursing, 22: 1073–1079. doi: 10.1111/j.1365-2702.2011.04048.x
- Issue online: 11 MAR 2013
- Version of Record online: 30 MAY 2012
- Accepted for publication: 7 November 2011
- chronic kidney disease;
- exploratory factor analysis;
- instrument development;
- psychometric evaluation;
Aims and objectives. This study aims to develop a valid and reliable chronic kidney disease self-management instrument (CKD-SM) for assessing early stage chronic kidney disease patients’ self-management behaviours.
Background. Enhancing early stage chronic kidney disease patients’ self-management plays a key role in delaying the progression of chronic kidney disease. Healthcare provider understanding of early stage chronic kidney disease patients’ self-management behaviours can help develop effective interventions. A valid and reliable instrument for measuring chronic kidney disease patients’ self-management behaviours is needed.
Design. A cross-sectional descriptive study collected data for principal components analysis with oblique rotation.
Methods. Mandarin- or Taiwanese-speaking adults with chronic kidney disease (n = 252) from two medical centres and one regional hospital in Southern Taiwan completed the CKD-SM. Construct validity was evaluated by exploratory factor analysis. Internal consistency and test–retest reliability were estimated by Cronbach’s alpha and Pearson correlation coefficients.
Results. Four factors were extracted and labelled self-integration, problem-solving, seeking social support and adherence to recommended regimen. The four factors accounted for 60·51% of the total variance. Each factor showed acceptable internal reliability with Cronbach’s alpha from 0·77–0·92. The test–retest correlations for the CKD-SM was 0·72.
Conclusion. The psychometric quality of the CKD-SM instrument was satisfactory. Research to conduct a confirmatory factor analysis to further validate this new instrument’s construct validity is recommended.
Relevance to clinical practice. The CKD-SM instrument is useful for clinicians who wish to identify the problems with self-management among chronic kidney disease patients early. Self-management assessment will be helpful to develop intervention tailored to the needs of the chronic kidney disease population.