MASCC MSG member confidence in assessment tools with each tool ranked from 0 = no confident at all in using the tool to 10 = extremely confident in using the tool. BSC, Bristol stool scale; DGS, daily gut score; FACIT-D, Functional Assessment of Chronic Illness Therapy Diaerrhoea subscale; NCI-CTCAE, National Cancer Institute-Common Terminology Criteria for Adverse Events; IBD-Q Score, Inflammatory Bowel Disease Questionnaire; OMAS, Oral Mucositis Assessment Scale; OMDQ, Oral Mucositis Daily Questionnaire; OMWQ, Oral Mucositis Weekly Questionnaire; PRO-CTCAE, Patient-reported outcome-Common Terminology Criteria for Adverse Events; RTOG, Radiation Therapy Oncology Group; WHO, World Health Organization.