• Anne J Boonman, Maarten Cuypers, Geraline L Leusink, Jenneken Naaldenberg, and Haiko J Bloemendal.
• Department of Primary and Community Care, Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, Netherlands. Electronic address: anne.boonman@radboudumc.nl.
• Lancet Oncol. 2022 Apr 1; 23 (4): e174-e183.

AbstractAdults with intellectual disabilities face disparities in receipt of cancer-related care, which could contribute to an increase in the rate of cancer-related deaths in this population. Yet, relatively little is known about the optimal cancer treatment or treatment decision making in adults with intellectual disabilities. This scoping review assessed PubMed and Embase for available literature on the description of cancer treatment and treatment decision making in patients with intellectual disabilities, published in English between Jan 1, 2000, and April 30, 2020. We appraised 90 included articles and extracted quotes addressing aspects related to cancer treatment and treatment decision making in patients with intellectual disabilities. Themes and subcategories were subsequently derived. Our findings revealed that the available literature describes that people with intellectual disabilities tend to have less intensive cancer treatment than generally administered, but with little evidence supporting this approach. This finding indicates that this medically vulnerable patient population needs tailored attention in both cancer care and research. We propose changes to practice and conclude by addressing the urgent need to pay specific attention to this patient population.Copyright © 2022 Elsevier Ltd. All rights reserved.

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