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Reporting of genetic diagnoses in multidisciplinary intellectual disability care2578chosen from their statistical significance on bivariate analyses. As for the legal representative variable, those with a family or non-family member as legal representative were included in the model, excluding those without a (reported) legal representative to reduce possible bias or multicollinearity. Cochran’s Q test was used to examine to what extent genetic test results were available or recorded in either medical files, psychodiagnostic files or files used by caregivers. Statistical analyses were performed using SPSS version 28.0 (SPSS Inc., Chicago, IL, USA) with a two-sided significance level of 5%. Ethics DeclarationA waiver for formal approval was obtained from the Institutional Review Board of Amsterdam UMC, the Netherlands (#W21_398#21.443). Individuals receiving care or support from ‘s Heeren Loo do or do not provide consent for using their data for research. If there was no consent for using their data, individuals were excluded. All data were collected and analyzed according to the EU General Data Protection Regulation and the Dutch General Regulation Data Protection (Uitvoeringswet AVG). The study used existing data that were handled anonymously as much as possible. For example, we used age categories instead of the exact age. The study adheres to the principles of the Declaration of Helsinki.ResultsWe included 380 individuals at a median age of 46 (interquartile range 31; range 9-95) years old. Demographic and clinical characteristics are presented in Table 1. Annelieke Muller sHL.indd 257 14-11-2023 09:07