Validation of the QLQ-EN24 instrument for the assessment of health-related quality of life for women with endometrial cancer in México.

PURPOSE: The impact of disease activity or treatments on health-related quality of life (HRQL) is crucial in Oncology, but adequate instruments for this assessment are scarce. Our aim is to validate the Mexican-Spanish version of the QLQ-EN24 questionnaire to evaluate HRQL in women with endometrial cancer (EC). METHODS: This is a prospective study of Mexican women with EC, attending a single cancer centre, who responded the QLQ-C30 and QLQ-EN24 instruments; usual psychometric analysis were performed as well as the association of HRQL scales and relevant clinical data. Correlation analysis was performed with the Spearman's method, reliability analysis with the Cronbach's alpha, known-group comparisons with the Kruskal-Wallis test, and survival analysis with the Kaplan-Meier method and Log-rank test. RESULTS: One hundred and eighty-nine women with EC were assessed. Most functional scales reported high values, and most symptom scales, low. Questionnaire compliance rates were high and internal consistency tests demonstrated adequate convergent and divergent validity. Cronbach's α coefficients of the five multi-item scales the QLQ-EN24 instruments were from 0.659 to 0.887. Scales of the QLQ-C30 and QLQ-EN24 instruments distinguished among clinically distinct groups of patients, particularly based on serum albumin levels. The Urological symptoms, Gastrointestinal symptoms, Body image, Pelvic pain and Taste change scales were significantly associated with OS. CONCLUSION: The Mexican-Spanish version of the QLQ-EN24 questionnaire is reliable and valid for the assessment of HRQL in patients with EC and can be broadly used in multi-national clinical trials. However, conclusions derived from scales evaluating sexual function should be handled carefully.

Baseline serum albumin and other common clinical markers are prognostic factors in colorectal carcinoma: A retrospective cohort study.

The aim of the present study was to define the prognostic role of baseline serum albumin (BSA) in colorectal cancer (CRC) across tumor-node-metastasis (TNM) stages and other well defined prognostic factors. Many prognostic models in medicine employ BSA to define or refine treatments in very specific settings; in CRC, BSA has been found to be a prognostic factor as well. A retrospective cohort study of consecutive patients with CRC demonstrated by biopsy, who attended a cancer center during a 7-year period. Multivariate analysis was utilized to define prognostic factors associated with overall survival (OS) employing the Cox model. In this retrospective cohort study, 1465 patients were included; 46.6% were females and 53.4% males (mean age, 59.1 years). Mean BSA was inversely correlated with TNM stages. By multivariate analysis, it was an independent explanatory variable. TNM stages, "R" classification, age, lymphocyte count, neutrophil/platelet ratio, neutrophil/lymphocyte ratio, platelet/lymphocyte ratio, postoperative morbidity, and BSA were independently associated with OS. Morbidities, surgery type, chemotherapy, and radiotherapy were considered confounders after adjusting by TNM stages. BSA is a significant and independent prognostic factor in patients with CRC, and its effect is maintained across TNM strata and other well known clinical prognostic factors. It can be easily used in prognostic models and should be employed to stratify prognosis in therapeutic randomized clinical trials.