Objective
To generate a Korean version of the Oxford Cognitive Screen (K-OCS) and obtain cutoff scores that determine the impairment of each subdomain. Post-stroke cognitive impairment (PSCI) negatively impacts the rehabilitation process and independence in daily life. Its obscure manifestations require effective screening for appropriate rehabilitation. However, in most rehabilitation clinics, psychological evaluation tools for Alzheimer’s dementia have been used without such considerations. The OCS is a screening assessment tool for PSCI and vascular dementia that can evaluate the cognitive domains most often affected by stroke, including language, attention, memory, praxis, and numerical cognition. It comprises 10 subtasks and enables quick and effective cognitive evaluation.
Methods
The K-OCS, which considers Korea’s unique cultural and linguistic characteristics, was developed with the approval and cooperation of the original author. Enrollment of participants without disabilities was announced at Duksung Women’s University, Yongin Sevrance Hospital, CHA Bundang Medical Center. The study was conducted between September 2020 and March 2022 on 97 male and female participants aged ≥30 years.
Results
All the 97 participants completed the task. In this study, the 5th percentile score was presumed to be the cutoff value for each score, and the values are provided here. The cutoff score for each OCS subtask was similar to that of the original British version.
Conclusion
We suggest the usability of the K-OCS as a screening tool for PSCI by providing the cutoff value of each subtask.

Citations

• Quality of Assessment Tools for Aphasia: A Systematic Review
  Francescaroberta Panuccio, Giulia Rossi, Anita Di Nuzzo, Ilaria Ruotolo, Giada Cianfriglia, Rachele Simeon, Giovanni Sellitto, Anna Berardi, Giovanni Galeoto
  Brain Sciences.2025; 15(3): 271.     CrossRef
• Validation of Korean Version of the Oxford Cognitive Screen (K-OCS), a Post Stroke-Specific Cognitive Screening Tool
  Eunyoung Cho, Sungwon Choi, Nele Demeyere, Rina Kim, Ikhyun Lim, MinYoung Kim
  Annals of Rehabilitation Medicine.2025; 49(1): 5.     CrossRef
• The Oxford Cognitive Screen in culturally diverse populations: A comparative study of Suriname and Belgium
  Shonimá G. Gangaram-Panday, Hanne Huygelier, Nele Demeyere, Céline R. Gillebert
  Journal of the International Neuropsychological Society.2025; 31(9-10): 709.     CrossRef