Consensus on a conversation aid for shared decision making with people with intellectual disabilities in the palliative phase

Background Little is known about how to involve people with intellectual disabilities in making decisions about treatment and care in their palliative phase. We aimed to reach a consensus about a shared decision-making (SDM) conversation aid for people with intellectual disabilities, relatives, and healthcare professionals. Methods In a Delphi process, an expert panel of 11 people with intellectual disabilities, 14 relatives, and 65 healthcare professionals completed online questionnaires about the relevance and feasibility of a draft conversation aid. Results In Round 1, components were rated as (very) relevant by 70-98% of participants (M = 87%). In Round 2, after amending the aid in response to feedback, relevance ratings were 67-97% (M = 90%) and feasibility ratings 66-86% (M = 77%). The final version consists of four themes: who are you; illness/end-of-life; making decisions; and evaluating the decision. Conclusion The consensus-based conversation aid is considered sufficiently relevant and feasible to be implemented in practice.