Clinical validation of the EORTC QLQ-OG25 questionnaire for the evaluation of health-related quality of life in Mexican patients with esophagogastric cancers.

Background: Quality of life questionnaires (QLQ) QLQ-STO22 and QLQ-OES18 are currently available to measure Health-related quality of life (HRQL) in patients with Esophageal (EC) or Gastric cancer (GC). The QLQ-OG25 integrates questions from both questionnaires to be useful for EC, Esophagogastric junction carcinoma (EGJC), and GC. Our aim was to validate the Mexican-Spanish version.