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01-08-2015 | Brief Communication

Validation of the chronic respiratory questionnaire in the Colombian population with chronic obstructive pulmonary disease

Auteurs: Jorge M. Estrada Álvarez, Ximena Ossa García, Carmen I. del Quijano del Gordo, Luis Bustos, Diana P. Urina, Celso F. Pérez, John E. Ossa, Edwin Moreno Rojas

Gepubliceerd in: Quality of Life Research | Uitgave 8/2015

Abstract

Objective

To assess the validity and reliability of the chronic respiratory questionnaire (CRQ) in the measurement of HRQL in the Colombian population with COPD.

Study design and setting

A cross-sectional study was conducted with a sample of 200 patients diagnosed with COPD according to GOLD criteria. Convergence validity was evaluated by correlating the questionnaire results with other clinical variables such as exercise tolerance, forced expiratory volume at the first second (FEV1), and depression levels.

Results

HRQL measured through the CRQ correlated significantly with the 6-min walk test (r = 0.34), just as the dimensions fatigue (r = 0.37) and dyspnoea correlated with the FEV1 test (r = 0.21) and the dimensions emotional function and disease management with depression levels (r = −0.79). The Generalized Structured Component Analysis (GSCA) with the prespecified model is showed, and the total variance explained by the items in the model was 61.5 % (FIT = 0.615), unweighted least squares (GFI = 0.998), and standardised root mean square (SRMR = 0.084), indicating that the model fits adequately.

Conclusion

The CRQ presents evidence of adequate validity and reliability in the Colombian population. Its use is recommended to measure HRQL in patients with COPD, although future validations will be needed to identify the property of sensitivity to change.

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Titel: Validation of the chronic respiratory questionnaire in the Colombian population with chronic obstructive pulmonary disease
Auteurs: Jorge M. Estrada Álvarez
Ximena Ossa García
Carmen I. del Quijano del Gordo
Luis Bustos
Diana P. Urina
Celso F. Pérez
John E. Ossa
Edwin Moreno Rojas
Publicatiedatum: 01-08-2015
Uitgeverij: Springer International Publishing
Gepubliceerd in: Quality of Life Research / Uitgave 8/2015
Print ISSN: 0962-9343
Elektronisch ISSN: 1573-2649
DOI: https://doi.org/10.1007/s11136-015-0939-1

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Abstract

Objective

Study design and setting

Results

Conclusion

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