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Background: Cancer-related cachexia (CRC) has a profound impact on health-related quality of life (HRQL), and both were reported to be associated with overall survival (OS). We hypothesize that HRQL and CRC are associated with OS. This study analyzed the impact of CRC on HRQL and its prognostic value in women with cervical cancer (CC)., Methods: A cohort study including consecutive women with CC treated from October 2020 to October 2021 in a cancer center. Cox's model defined the associations of immune, biochemical and nutritional parameters, clinical cachexia classifications and HRQL with OS., Results: Two hundred forty-four consecutive women with CC were included. Cachexia classifications and several scales of the QLQ-C30 were associated with OS by bivariate but not by multivariate analysis. QLQ-CX24 scales were not associated with OS. The prognostic nutritional index (PNI) (hazard ratio (HR) 0.828; 95% confidence interval (CI) 0.766-0.896), Food aversion (HR 0.95; 95% CI 0.924-0.976), Eating difficulties (HR 1.041; 95% CI 1.013-1.071), Loss of control (HR 4.131; 95% CI 1.317-12.963), Forced self to eat (1.024; 95% CI 1.004-1.044) and Indigestion (HR 0.348; 95% CI 0.131-0.928) scales of the QLQ-CAX24 were independently associated with OS by multivariate analysis (p = 1.9×10-11)., Conclusion: This model permitted a clear stratification of prognostic subgroups. The PNI and several QLQ-CAX24 scales were associated with OS in women with CC. CRC, defined by several cachexia classifications, was not an independent prognostic factor. These findings require confirmation because of their possible diagnostic, therapeutic and prognostic implications.The prognostic nutritional index and several QLQ-CAX24 scales were associated with overall survival in women with cervical cancer. Cancer-related cachexia, defined by several cachexia classifications, was not an independent prognostic factor, neither The International Federation of Gynecology and Obstetrics (FIGO) stage classifications., (© The Author(s) 2023. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)

Cancer-related cachexia (CRC) is a common phenomenon in cervical cancer (CC), severely affecting clinical response, drug toxicity and survival. The patients' point of view should be evaluated to quantify the impact of CRC, and adequate instruments to do so are required. Thus, the study aimed to validate the Mexican-Spanish version of the QLQ-CAX24 instrument in women with CC. A cohort of women with CC answered the EORTC QLQ-C30 and QLQ-CAX24 instruments. The psychometric and clinimetric properties of the instruments were assessed. Two hundred and forty-four women were included; the mean age was 50 years (IQR: 41-60) and 188 (77%) were first diagnosed in locally advanced stages. The QLQ-CAX24 internal consistency test demonstrated adequate convergent (Spearman correlation coefficient 0.08-0.709) and divergent validity (Spearman correlation coefficient 0.006-0.471). Cronbach's alpha coefficients of the three multi-item scales were >0.5 (minimum 0.539, maximum 0.84). Patients with decreased handgrip strength, low fat-free mass, or high C-reactive protein levels had worse QLQ-CAX24 scale scores. Cachexia was diagnosed with the SCRINIO, Fearon and Evans criteria, and 31.5, 32.4 and 38.5% of women had cachexia, respectively. Patients with cachexia had the worst scores in terms of quality of life. The test re-test analysis did not show differences between visits in patients without malnutrition. The Mexican-Spanish version of the QLQ-CAX24 instrument is reliable and valid. Low handgrip strength, low fat-free mass and high C-reactive protein levels were associated with poor scale scores., (© The Author(s) 2022. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)