The EORTC QLQ-OH17: A supplementary module to the EORTC QLQ-C30 for assessment of oral health and quality of life in cancer patients

Aims: Assessment of oral and dental problems is seldom routine in clinical oncol- ogy, despite the potential negative impact of these problems on nutritional status, social func- tion and quality of life (QoL). The aim was to develop a supplementary module to the European Organisation for Research and Treatment of Cancer Core Questionnaire (EORTC QLQ-C30) focusing on oral health and related QoL issues in all cancer diagnoses. Methods: The module development followed the EORTC guidelines. Phases 1&2 were conducted in France, Germany, Greece, Netherlands, Norway and United Kingdom, while seven countries representing seven languages were included in Phase 3.