Multiple sclerosis causes cognitive impairment in roughly 40 to 65 percent of patients.

the verdict

SUPPORTED

the evidence backs this

Recorded sources

6 sources for · 1 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that multiple sclerosis causes cognitive impairment in roughly 40 to 65 percent of patients?

Yes. Multiple sources, including a Cleveland Clinic fact sheet and a clinical trial description, state that cognitive impairment affects roughly 40 to 65 percent of MS patients, matching the claim; one emergency-medicine reference gives a lower figure of up to 50 percent.

Verdict: SUPPORTED · 6 sources for, 1 against · Last checked 3 Oct 2026

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 6

Multiple sclerosis

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Multiple sclerosis. (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/Multiple_sclerosis

Evidence against · 1

Multiple Sclerosis (MS)

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Multiple Sclerosis (MS). (n.d.). wikem.org. https://wikem.org/wiki/Multiple_Sclerosis_(MS)

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More for · 5

Cognitive Impairment in Multiple Sclerosis: A Forgotten Disability Remembered -

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Cognitive Impairment in Multiple Sclerosis: A Forgotten Disability Remembered - PMC Lock. (n.d.). pmc.ncbi.nlm.nih.gov. https://pmc.ncbi.nlm.nih.gov/articles/PMC3574761/

Anxiety and depression in patients with multiple sclerosis

2023

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O.V., S., S.O., M., & O.I., K. (2023). Anxiety and depression in patients with multiple sclerosis. zenodo.org. https://doi.org/10.26641/2307-0404.2023.2.283349

Neuropsychological Management of Multiple Sclerosis: Benefits of a Computerised Semi-autonomous At-home Cognitive Rehabilitation Programme

2017

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Neuropsychological Management of Multiple Sclerosis: Benefits of a Computerised Semi-autonomous At-home Cognitive Rehabilitation Programme. (2017). clinicaltrials.gov. https://clinicaltrials.gov/study/NCT03471338

Identifying and Managing Cognitive Disorders in MS Fact Sheet | Cleveland Clinic

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Identifying and Managing Cognitive Disorders in MS Fact Sheet | Cleveland Clinic. (n.d.). my.clevelandclinic.org. https://my.clevelandclinic.org/departments/neurological/depts/multiple-sclerosis/ms-approaches/identifying-managing-cognitive-disorders-in-ms

A Novel Method for Assessing Word Finding Difficulty in Persons with Multiple Sclerosis: Semantically-Cued Retrieval of Exact Words

2025

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Emily, D. (2025). A Novel Method for Assessing Word Finding Difficulty in Persons with Multiple Sclerosis: Semantically-Cued Retrieval of Exact Words. doi.org. https://doi.org/10.7916/jkrn-gh51

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