Comorbidities in People With Intellectual Disability With and Without Schizophrenia and Schizophrenia Without Intellectual Disability: A Swedish Register Study (IDcare)

People with the combination of ID and schizophrenia had an increased risk of both physical and mental health conditions that could not be explained by either ID or schizophrenia alone. A correct diagnosis for people with the combination of ID and schizophrenia is important for the provision of adequate treatment. Future research should investigate pathways and explanatory factors, as well as the provision of services for people with ID and schizophrenia.