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. 2024 Nov 2:23969873241293573. Online ahead of print. doi: 10.1177/23969873241293573

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© European Stroke Organisation 2024

This article is distributed under the terms of the Creative Commons Attribution 4.0 License (https://creativecommons.org/licenses/by/4.0/) which permits any use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access page (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 2. — One-year risk of dementia in patients with stroke-heart syndrome compared to those without stroke-heart syndrome considering different clinically relevant subgroups.

CI: Confidence Interval; HR: Hazard Ratio; PSM: Propensity Score Matching; N: Number; OAC: Oral Anticoagulants, SHS: Stroke-Heart Syndrome.

A high χ² suggests a greater deviation from the expected values, indicating a potential violation of the proportional hazard assumption. Conversely, a small χ² value indicates that the observed residuals closely match the expected values.