2022 Volume 42 Pages 412-421
Purpose: To develop a scale (Scale for Elderly with Diabetic Nephropathy being initiated on dialysis: SEDNID) that measures the prospect of transition associated with the introduction of dialysis in elderly patients with diabetic nephropathy, and then verify the reliability and validity of the scale.
Methods: A draft scale consisting of 40 items was prepared after an interview-based survey. Using this scale, a questionnaire survey was conducted on patients aged 65 years old or older who were on regular hemodialysis treatment at any of 1,665 facilities nationwide for diabetic nephropathy. Analysis was conducted with data imputed for missing values.
Results: Data from 496 patients were analyzed to verify the convergence validity. For other validations, data from 502 patients were analyzed. Exploratory factor analysis led to the extraction of 6 factors and 32 items. Confirmatory factor analysis showed a comparative fit index (CFI) of .955 and a root mean square error of approximation (RMSEA) of .067. Thus, the results of convergence validity and known-group validity were statistically significant. However, the results of concurrent validity were not statistically significant. McDonald’s ω coefficient was .887 for the entire scale and .728 to .922 for the subscales.
Conclusion: Although issues of concurrent validity remain, we confirmed a certain level of reliability and validity.
