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Validation of a reduced instrument Diabetes-21 for assessing health related quality of life among people with diabetes

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DOI:

https://doi.org/10.1590/S1679-49742022000100004

Keywords:

Diabetes Mellitus, Quality of Life, Validity and Reliability, Factor Analysis, Statistical, Psychometric Analysis

Abstract

Objective: To analyze the validity, reliability and interpretability of a reduced instrument for assessing health-related quality of life in diabetes. Methods: Crosssectional study with people with diabetes, consisting of the phases: adaptation of the Diabetes-39 instrument (5 dimensions and 39 items), pre-test, analysis of structural validity, reliability, concurrent validity and interpretability. Results: The factor structure of the final version of the reduced instrument was different from the original. There was a reduction from 39 to 21 items and a reduction from 5 to 4 dimensions. The factor loadings in the exploratory and confirmatory analyzes ranged between 0.41-0.90 and 0.51-0.89, respectively. Reliability was adequate (Cronbach's alpha=0.91; Kappa≥0.60 in all items; intraclass correlation coefficient=0.91). Conclusion: The Diabetes-21 instrument was considered valid, reliable and interpretable for assessing health-related quality of life among people with diabetes.

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Posted

01/17/2022

How to Cite

Sousa, Árlen A. D. de, Brito, A. M. G., Silveira, M. F., & Martins, A. M. E. de B. L. (2022). Validation of a reduced instrument Diabetes-21 for assessing health related quality of life among people with diabetes. In SciELO Preprints. https://doi.org/10.1590/S1679-49742022000100004

Section

Health Sciences

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