European Organization for the Research and Treatment of Cancer Quality of Life Questionnaire - Esophageal Cancer 18 Items

**Semantic type:** Intellectual Product

**Definition:** A standardized 18-item questionnaire module developed by the European Organisation for Research and Treatment of Cancer (EORTC) in 2003 that is designed to supplement the EORTC QLQ-C30 core questionnaire in assessing quality of life in patients with esophageal cancer. This module was updated from the EORTC QLQ-OE24 that was developed in 1996.

**Synonyms:** - EOR20 - EORTC QLQ-OES18 - EORTC QLQ-OES18