Abstract Number: Esoc2026a2309 Test Battery Development for the Ocs-Precise Project: Predicting Cognitive Impairments in Stroke Survivors

Abstract Background and aims Cognitive impairments are common after stroke. Early identification is key for implementing rehabilitation. The Oxford Cognitive Screen is a stroke-specific cognitive screening tool that is widely used internationally. While the tool is popular amongst clinicians, it has not been validated against Gold Standard detailed neuropsychological assessment. The aim of the OCS-PRECISE project is to investigate the diagnostic and predictive validity of the tool and the prevalence of cognitive impairment in stroke. 240 consecutively recruited Danish-speaking stroke survivors will be assessed with the Oxford Cognitive Screen and matched neuropsychological tests at the subacute and chronic stage. Here, we present the development of the test battery for the OCS-PRECISE project. Methods We reviewed the literature to identify cognitive domains that are commonly affected after stroke and neuropsychological tests that are commonly used internationally to identify post-stroke cognitive impairments. For each subtest of the Oxford Cognitive Screen, a matched test was selected to create the OCS-PRECISE test battery. Results The final test battery consists of Gold Standard neuropsychological tests of Memory, Language, Praxis, Attention, and Number processing that are matched to the subtests of the Oxford Cognitive Screen as well as tests assessing aspects of executive functioning and language processing that are not covered by the Oxford Cognitive Screen. Conclusions The final OCS-PRECISE test battery includes 14 neuropsychological tests and will enable us to determine the diagnostic and predictive accuracy of the Oxford Cognitive Screen as well as the prevalence of post-stroke cognitive impairments in a representative sample. Conflict of interest Jacob S. Fosgrau: Funded by the Independant Research Fund Denmark. Haná M. Rytter: Nothing to disclose. Kristoffer Petterson: Nothing to disclose. Randi Starrfelt: Funded by the Independant Research Fund Denmark. Ro J. Robotham: Funded by the Independant Research Fund Denmark.