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Correlation between changes in CSF biomarkers and overall cognitive index change from before to 6 weeks after surgery and anesthesia. (A) CSF Aβ; (B) CSF tau; (C) CSF p‐tau‐181p; (D) tau/Aβ ratio; (E) p‐tau‐181p/Aβ ratio. A positive score on the x‐ or y‐axis represents an improvement in cognitive score or an increase in the indicated biomarker from before to after surgery, respectively, and vice versa.
