Validade estrutural e de construto do questionário da Universidade de Washington sobre qualidade de vida para pacientes com câncer de cabeça e pescoço em pacientes laringectomizados após câncer

Abstract

Objective: The aim of this study was to validate the University of Washington Quality of Life questionnaire (QW) for head and neck cancer patients in laryngectomized individuals after cancer. Materials and Methods: This was a cross-sectional study with a quantitative approach, conducted over a period of 1 year and 11 months at the Instituto Maranhense de Oncologia Aldenora Bello (IMOAB) in São Luís, Maranhão, from January 2023 to December 2024. In addition to the initial anamnesis, the QW and the 36-Item Short Form Survey (SF-36) were applied. Results: The sample consisted of 65 patients who underwent total laryngectomy. A correlation magnitude between the QW and the domains of the SF-36 was identified, ranging from 0.351 to

0.501, and an adequate internal structure of the QW was identified: Kaiser-Meyer- Olkin (KMO) test = 0.71; p-value < 0.001 in the Bartlett's test of sphericity;

comparative fit index = 0.98; Tucker-Lewis index = 0.97; root mean square error of approximation = 0.063; chi-square/degrees of freedom = 1.25. Conclusion: The structural and construct validity of the QW was found to be adequate in laryngectomized patients after cancer.