The <scp>Oxford Cognitive Screen</scp> for use with Australian people after stroke (OCS‐AU): The adaptation process and determining cut scores for cognitive impairment using a cross‐sectional normative study

Sanctuary, Colette; Hewitt, Luisa; Demeyere, Nele; Kankkunen, Kirsti; Oxenham, Vincent; Simpson, Dawn; Stolwyk, Renerus J.; Synn, Artemis; Webb, Sam Sappho; Marsden, Dianne L

doi:10.1111/1440-1630.12838

Cited by 4 publications

(4 citation statements)

References 25 publications

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“…Previous studies have also suggested that although the MoCA is a useful screening tool for detecting global post-stroke cognitive impairment, it does not sufficiently identify domain-specific cognitive deficits that commonly occur after stroke (Chan et al 2014;Demeyere et al 2016). Indeed, the Oxford Cognitive Screen (OCS) was developed to detect these cognitive impairments and has recently been adopted as the preferred poststroke cognitive screening measure at Monash Medical Centre (Demeyere et al 2016;Sanctuary et al 2023). Future research exploring cognition in the acute stages following ischaemic stroke should therefore consider using the OCS to identify domain-specific cognitive impairments.…”

Section: Discussionmentioning

confidence: 99%

What does cognitive screening reveal about early cognitive performance following endovascular clot retrieval and intravenous thrombolysis in acute ischaemic stroke?

Humphrey,

Pike,

Long

et al. 2024

Brain I.

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Background Little is known regarding cognitive outcomes following treatment with endovascular clot retrieval (ECR) and intravenous tissue plasminogen activator (t-PA). We aimed to determine if there were any differences on a measure of cognitive screening between patients treated with ECR, t-PA, and those who were managed conservatively. Methods The medical records of ischaemic stroke patients admitted to Monash Medical Centre between January 2019 and December 2019 were retrospectively reviewed. Information extracted from medical records included age, sex, National Institutes of Health Stroke Scale at presentation, location of occlusion, treatment type, medical history, and cognitive screening performance measured by the Montreal Cognitive Assessment (MoCA). Results Eighty-two patients met the inclusion criteria (mean age = 66.5 ± 13.9; 49 male, 33 female). Patients treated with ECR performed significantly better on the MoCA (n = 36, 24.1 ± 4.3) compared to those who were managed conservatively (n = 26, 20.7 ± 5.5). Performance for patients treated with t-PA (n = 20, 23.9 ± 3.5) fell between the ECR and conservative management groups, but they did not significantly differ from either. Conclusion Our retrospective chart review found that ischaemic stroke patients treated with ECR appear to perform better on cognitive screening compared to patients who are managed conservatively. We also found that patients treated with ECR and t-PA appear to have similar cognitive screening performances in the acute stages following ischaemic stroke, although this finding is likely to have been impacted by group differences in stroke characteristics and may reflect the possibility that the ECR group performed better than expected based on their stroke severity.

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Section: Discussionmentioning

confidence: 99%

What does cognitive screening reveal about early cognitive performance following endovascular clot retrieval and intravenous thrombolysis in acute ischaemic stroke?

Humphrey,

Pike,

Long

et al. 2024

Brain I.

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“…We then directly compared the mean scores and centile cutoffs per subtest between the UK OCS and OCS TA to establish similarities and differences between the tools. It is essential to compare between UK OCS and OCS TA for scores and cutoffs, as there are limited differences in international OCS versions, so if large differences are to be found, adjustments to the OCS TA need to be made (see the Danish OCS which directly compared British and Italian OCS data, Robotham et al, 2019; and a more recent Australian OCS version which also found similar results, Sanctuary et al, 2023). We then finalized the cutoffs and normative data for the OCS TA.…”

Section: Discussionmentioning

confidence: 99%

“…In comparison to other translations and country differences, differences in raw scores of some subtasks are expected, but the majority of clinical cutoffs remain similar across nations. For instance, in the Australian OCS, differences in samples were found between semantics and orientation subtasks, but not in cutoffs, and differences in praxis lead to different cutoffs (Sanctuary et al, 2023). Cutoffs for impairment were updated for the memory, gesture imitation, and executive function tasks.…”

Section: Discussionmentioning

confidence: 99%

The cultural and linguistic adaptation of the Oxford Cognitive Screen to Tamil

A. P.,

Venkateswaran,

Vijayanand

et al. 2023

J Int Neuropsychol Soc

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Objective:The Oxford Cognitive Screen (OCS) is a screening tool to assess stroke patients for deficits in attention, executive functions, language, praxis, numeric cognition, and memory. In this study, the OCS was culturally and linguistically adapted to Tamil, for use in India (OCS TA), considering the differences between formal and spoken versions of Tamil and consideration of its phonetic complexity. Method:We adopted two-parallel form versions of the OCS and generated normative data for them. We recruited 181 healthy controls (Mean = 39.27 years, SD 16.52) (141 completed version A, 40 completed version B, 33 completed version A and B) and compared the data with the original UK normative sample. In addition, 28 native Tamil-speaking patients who had a stroke in the past three years (Mean = 62.76 years, SD 9.14) were assessed. Convergent validity was assessed with subtasks from Addenbrooke’s Cognitive Examination III (ACE-III). Results:We found significant differences between the UK normative group and the OCS TA normative group in age and education. Tamil-specific norms were used to adapt the cutoffs for the memory, gesture imitation, and executive function tasks. When domain-specific scores on the ACE-III were compared, OCS TA exhibited strong convergent validity.Conclusions:The OCS TA has shown the potential to be a useful screening tool for stroke survivors among Tamil speakers with the two-parallel forms demonstrating good equivalence. Further empirical evidence from larger studies is required to establish their psychometric performance and clinical validity.

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“…The OCS was validated in the British population with high specificity [15]. Subsequently, its validation studies have been conducted in Italy, Hong Kong, Russia, Denmark, Portugal, Belgium, and Australia [18][19][20][21][22][23][24].…”

Section: The Korean Version Of the Oxford Cognitive Screen (K-ocs) No...mentioning

confidence: 99%

The Korean Version of the Oxford Cognitive Screen (K-OCS) Normative Study

Cho,

Choi,

Demeyere

et al. 2024

Ann Rehabil Med

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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.

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The Oxford Cognitive Screen for use with Australian people after stroke (OCS‐AU): The adaptation process and determining cut scores for cognitive impairment using a cross‐sectional normative study

Cited by 4 publications

References 25 publications

What does cognitive screening reveal about early cognitive performance following endovascular clot retrieval and intravenous thrombolysis in acute ischaemic stroke?

What does cognitive screening reveal about early cognitive performance following endovascular clot retrieval and intravenous thrombolysis in acute ischaemic stroke?

The cultural and linguistic adaptation of the Oxford Cognitive Screen to Tamil

The Korean Version of the Oxford Cognitive Screen (K-OCS) Normative Study

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