Colombian Validation of the EORTC QLQ-STO22 for Evaluating Quality of Life in Patients Diagnosed with Gastric Cancer

DOI:  https://doi.org/10.12804/revistas.urosario.edu.co/apl/a.3217

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Published: Apr 18, 2015
Issue: Vol. 33 No. 3 (2015): Psicooncología y Cuidado Paliativo
Section Artículos


Keywords: Quality of life gastric cancer scale validation questionnaire EORTC QLQ-STO22.

Main Article Content

Authors

Claudia Ibañez
Instituto Nacional de Cancerología
  Ricardo Sánchez Pedraza
Universidad Nacional de Colombia
Ricardo Oliveros
Instituto Nacional de Cancerología

Abstract

Objective: To validate the EORTC QLQ-STO22 for measuring quality of life in patients with gastric cancer in Colombia. Method: Factor analysis (exploratory and confirmatory) was used to evaluate content validity. Concurrent validity was evaluated measuring the correlation between QLQ-STO22 and FACIT-Ga. Cronbach’s alpha was used to evaluate internal consistency. Test-retest reliability was measured using the Lin concordance-correlation coefficient. Sensitivity to change was evaluated comparing the medians pre-and post-treatment. Results: The QLQ-STO22 was responded by 442 patients with diagnostic of gastric cancer. Exploratory factor analysis revealed five domains and confirmatory factor analysis indicated an acceptable fit to the data. A high internal consistency with Cronbach’s alpha of .897was found. Stronger correlations were found between QLQ-STO22 (general health status) and FACIT-Ga (specific subscale of gastric symptoms and related problems). For test-retest reliability Lin coefficients between .656 and .851 were found. Differences between pre-and post-therapy scores were significant for some of the domains of the scale (dysphagia, restrictions on feeding). Conclusion: The EORTC QLQ-STO22 is a reliable and valid instrument for measuring quality of life in Colombian patients. Further studies aimed at evaluating sensitivity to change are recommended.
How to Cite
Ibañez, C., Sánchez Pedraza, R., & Oliveros, R. (2015). Colombian Validation of the EORTC QLQ-STO22 for Evaluating Quality of Life in Patients Diagnosed with Gastric Cancer. Avances En Psicología Latinoamericana, 33(3), 397–411. https://doi.org/10.12804/revistas.urosario.edu.co/apl/a.3217
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