Browsing by Author "Lorca, Luz Alejandra"

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    Propiedades psicométricas de la versión chilena del cuestionario de calidad de vida para mieloma múltiple
    (2024) Lorca, Luz Alejandra; Sacomori, Cinara; Peña, Camila; Barrera, Claudia; Salazar, Melissa; Leão, Ivana; Valladares, Ximena; Rojas, Christine
    Objetivos: Evaluar consistencia interna y validez de constructo del QLQ-MY20 para valoración de calidad de vida en sobrevivientes de mieloma múltiple en Chile. Métodos: Estudio transversal, realizado entre marzo 2020 y diciembre 2022. Participaron 118 personas de dos hospitales públicos. Se utilizaron los cuestionarios QLQ-C30 y QLQ-MY20. Fueron evaluadas la consistencia interna con alfa de Cronbach (α) y validez de constructo mediante pruebas de hipótesis (Mann Whitney y correlación de Spearman). Resultados: El promedio de edad de los participantes era 67,2 (DE=9,2) años. Consistencia interna para escala completa (α=0,779), dimensión “síntomas de la enfermedad” (α=0,671), dimensión “efectos secundarios de los tratamientos” (α=0,538) y dimensión “perspectiva de futuro” (α=0,670). Se comprobaron cuatro de las cinco hipótesis de la validez de constructo: presentaron más síntomas las mujeres, personas con peor performance estatus, con dolor y con peor fatiga. Conclusiones: La versión chilena del QLQ-MY20 presenta adecuada consistencia interna y validez de constructo.
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    Spanish Translation, Face Validity, and Reliability of the ICIQ-B Questionnaire with Colorectal Cancer Patients
    (2021) Sacomori, Cinara; Lorca, Luz Alejandra; Martínez-Mardones, Mónica; Benavente, Paulina; Plasser, Jorge; Pardoe, Megan
    Purpose To describe the English-to-Spanish translation process and preliminary psychometric analysis (face validity, cultural adaptation, and test-retest reliability) of the International Consultation on Incontinence Questionnaire – Bowels Module (ICIQB) among Chilean colorectal cancer patients. Materials and Methods The face validity was studied with 10 colorectal cancer patients, and the test-retest reliability, with 15 patients, 1 month before and 6 months after cancer surgery. Results Two rounds of translation/back translation resulted in a Spanish version. The English expression open your bowels was translated as defecar, as it is easily understandable in Spanish. The patients reported that the instrument was easy to answer, with clear instructions, and that it was adequate to appraise their health condition. The testretest reliability was good (Spearman rho [ρ] 0.842); only item 15a, the Bristol Stool Scale, obtained a moderate correlation (ρ ¼ 0.639). The patients reported a variety of symptoms, including increased bowel movements, nocturnal bowel movements, fecal urgency, and incontinence. Conclusions The first Spanish version of the ICIQ-B was culturally adapted for Chilean colorectal cancer patients, and showed good test-retest reliability. It might be a reference for other Spanish-speaking countries and for patients with other conditions. The ICIQ-B is a robust comprehensive questionnaire for bowel function
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    Spanish version of the ICIQ-Bowel questionnaire among colorectal cancer patients: construct and criterion validity: Comprehensive assessment of bowel function
    (2023) Sacomori, Cinara; Lorca, Luz Alejandra; Martínez-Mardones, Mónica; Pizarro-Hinojosa, Marta Natalia; Rebolledo-Díaz, Gonzalo Sebastián; Vivallos-González, Jessica Andrea
    Purpose: Bowel complaints are very common among patients with colorectal cancer. However, the most used questionnaires for colorectal cancer survivors do not comprehensively comprise bowel symptoms. This study aimed to examine construct and criterion validity, as well as internal consistency, of the Chilean Version of the International Consultation on Incontinence Questionnaire Bowel Module (ICIQ-B) among people with colorectal cancer. Methods: Cross-sectional, validation study performed with 106 colorectal cancer patients from Hospital del Salvador, Chile. Bowel function was assessed with the ICIQ-B. Construct validity was assessed with confirmatory factor analysis and hypothesis testing. Specific items of a quality-of-life questionnaire (EORTC QLQ-CR29) were used to correlate with similar ICIQ-B items for criterion validity. For internal consistency, Cronbach's alpha was computed. Results: For construct validity, the confirmatory factor analysis showed that the three factors model did not fit our data. Meanwhile, hypothesis testing favored the construct validity of the instrument, considering that rectal cancer patients showed worse bowel pattern (p = 0.001), bowel control (p = 0.001) and quality of life (p < 0.001) scores compared to colon cancer patients. In addition, those patients assessed before surgery also presented worse scores bowel control (p = 0.023) and quality of life (p = 0.009) compared to post-surgical patients. Regarding criterion validity, the ICIQ-B items showed a significant correlation with similar QLQ-CR29 items. The internal reliability of the instrument was good (Cronbach's α = 0.909). Conclusion: Considering that this questionnaire appraises bowel function in more depth, it is recommended for use in clinical practice and research with colorectal cancer patients.

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